1.. SPDX-License-Identifier: GPL-2.0
2
3===============
4ARCnet Hardware
5===============
6
7.. note::
8
9   1) This file is a supplement to arcnet.txt.  Please read that for general
10      driver configuration help.
11   2) This file is no longer Linux-specific.  It should probably be moved out
12      of the kernel sources.  Ideas?
13
14Because so many people (myself included) seem to have obtained ARCnet cards
15without manuals, this file contains a quick introduction to ARCnet hardware,
16some cabling tips, and a listing of all jumper settings I can find. Please
17e-mail apenwarr@worldvisions.ca with any settings for your particular card,
18or any other information you have!
19
20
21Introduction to ARCnet
22======================
23
24ARCnet is a network type which works in a way similar to popular Ethernet
25networks but which is also different in some very important ways.
26
27First of all, you can get ARCnet cards in at least two speeds: 2.5 Mbps
28(slower than Ethernet) and 100 Mbps (faster than normal Ethernet).  In fact,
29there are others as well, but these are less common.  The different hardware
30types, as far as I'm aware, are not compatible and so you cannot wire a
31100 Mbps card to a 2.5 Mbps card, and so on.  From what I hear, my driver does
32work with 100 Mbps cards, but I haven't been able to verify this myself,
33since I only have the 2.5 Mbps variety.  It is probably not going to saturate
34your 100 Mbps card.  Stop complaining. :)
35
36You also cannot connect an ARCnet card to any kind of Ethernet card and
37expect it to work.
38
39There are two "types" of ARCnet - STAR topology and BUS topology.  This
40refers to how the cards are meant to be wired together.  According to most
41available documentation, you can only connect STAR cards to STAR cards and
42BUS cards to BUS cards.  That makes sense, right?  Well, it's not quite
43true; see below under "Cabling."
44
45Once you get past these little stumbling blocks, ARCnet is actually quite a
46well-designed standard.  It uses something called "modified token passing"
47which makes it completely incompatible with so-called "Token Ring" cards,
48but which makes transfers much more reliable than Ethernet does.  In fact,
49ARCnet will guarantee that a packet arrives safely at the destination, and
50even if it can't possibly be delivered properly (ie. because of a cable
51break, or because the destination computer does not exist) it will at least
52tell the sender about it.
53
54Because of the carefully defined action of the "token", it will always make
55a pass around the "ring" within a maximum length of time.  This makes it
56useful for realtime networks.
57
58In addition, all known ARCnet cards have an (almost) identical programming
59interface.  This means that with one ARCnet driver you can support any
60card, whereas with Ethernet each manufacturer uses what is sometimes a
61completely different programming interface, leading to a lot of different,
62sometimes very similar, Ethernet drivers.  Of course, always using the same
63programming interface also means that when high-performance hardware
64facilities like PCI bus mastering DMA appear, it's hard to take advantage of
65them.  Let's not go into that.
66
67One thing that makes ARCnet cards difficult to program for, however, is the
68limit on their packet sizes; standard ARCnet can only send packets that are
69up to 508 bytes in length.  This is smaller than the Internet "bare minimum"
70of 576 bytes, let alone the Ethernet MTU of 1500.  To compensate, an extra
71level of encapsulation is defined by RFC1201, which I call "packet
72splitting," that allows "virtual packets" to grow as large as 64K each,
73although they are generally kept down to the Ethernet-style 1500 bytes.
74
75For more information on the advantages and disadvantages (mostly the
76advantages) of ARCnet networks, you might try the "ARCnet Trade Association"
77WWW page:
78
79	http://www.arcnet.com
80
81
82Cabling ARCnet Networks
83=======================
84
85This section was rewritten by
86
87	Vojtech Pavlik     <vojtech@suse.cz>
88
89using information from several people, including:
90
91	- Avery Pennraun     <apenwarr@worldvisions.ca>
92	- Stephen A. Wood    <saw@hallc1.cebaf.gov>
93	- John Paul Morrison <jmorriso@bogomips.ee.ubc.ca>
94	- Joachim Koenig     <jojo@repas.de>
95
96and Avery touched it up a bit, at Vojtech's request.
97
98ARCnet (the classic 2.5 Mbps version) can be connected by two different
99types of cabling: coax and twisted pair.  The other ARCnet-type networks
100(100 Mbps TCNS and 320 kbps - 32 Mbps ARCnet Plus) use different types of
101cabling (Type1, Fiber, C1, C4, C5).
102
103For a coax network, you "should" use 93 Ohm RG-62 cable.  But other cables
104also work fine, because ARCnet is a very stable network. I personally use 75
105Ohm TV antenna cable.
106
107Cards for coax cabling are shipped in two different variants: for BUS and
108STAR network topologies.  They are mostly the same.  The only difference
109lies in the hybrid chip installed.  BUS cards use high impedance output,
110while STAR use low impedance.  Low impedance card (STAR) is electrically
111equal to a high impedance one with a terminator installed.
112
113Usually, the ARCnet networks are built up from STAR cards and hubs.  There
114are two types of hubs - active and passive.  Passive hubs are small boxes
115with four BNC connectors containing four 47 Ohm resistors::
116
117	   |         | wires
118	   R         + junction
119	-R-+-R-      R 47 Ohm resistors
120	   R
121	   |
122
123The shielding is connected together.  Active hubs are much more complicated;
124they are powered and contain electronics to amplify the signal and send it
125to other segments of the net.  They usually have eight connectors.  Active
126hubs come in two variants - dumb and smart.  The dumb variant just
127amplifies, but the smart one decodes to digital and encodes back all packets
128coming through.  This is much better if you have several hubs in the net,
129since many dumb active hubs may worsen the signal quality.
130
131And now to the cabling.  What you can connect together:
132
1331. A card to a card.  This is the simplest way of creating a 2-computer
134   network.
135
1362. A card to a passive hub.  Remember that all unused connectors on the hub
137   must be properly terminated with 93 Ohm (or something else if you don't
138   have the right ones) terminators.
139
140	(Avery's note: oops, I didn't know that.  Mine (TV cable) works
141	anyway, though.)
142
1433. A card to an active hub.  Here is no need to terminate the unused
144   connectors except some kind of aesthetic feeling.  But, there may not be
145   more than eleven active hubs between any two computers.  That of course
146   doesn't limit the number of active hubs on the network.
147
1484. An active hub to another.
149
1505. An active hub to passive hub.
151
152Remember that you cannot connect two passive hubs together.  The power loss
153implied by such a connection is too high for the net to operate reliably.
154
155An example of a typical ARCnet network::
156
157	   R                     S - STAR type card
158    S------H--------A-------S    R - Terminator
159	   |        |            H - Hub
160	   |        |            A - Active hub
161	   |   S----H----S
162	   S        |
163		    |
164		    S
165
166The BUS topology is very similar to the one used by Ethernet.  The only
167difference is in cable and terminators: they should be 93 Ohm.  Ethernet
168uses 50 Ohm impedance. You use T connectors to put the computers on a single
169line of cable, the bus. You have to put terminators at both ends of the
170cable. A typical BUS ARCnet network looks like::
171
172    RT----T------T------T------T------TR
173     B    B      B      B      B      B
174
175  B - BUS type card
176  R - Terminator
177  T - T connector
178
179But that is not all! The two types can be connected together.  According to
180the official documentation the only way of connecting them is using an active
181hub::
182
183	 A------T------T------TR
184	 |      B      B      B
185     S---H---S
186	 |
187	 S
188
189The official docs also state that you can use STAR cards at the ends of
190BUS network in place of a BUS card and a terminator::
191
192     S------T------T------S
193	    B      B
194
195But, according to my own experiments, you can simply hang a BUS type card
196anywhere in middle of a cable in a STAR topology network.  And more - you
197can use the bus card in place of any star card if you use a terminator. Then
198you can build very complicated networks fulfilling all your needs!  An
199example::
200
201				  S
202				  |
203	   RT------T-------T------H------S
204	    B      B       B      |
205				  |       R
206    S------A------T-------T-------A-------H------TR
207	   |      B       B       |       |      B
208	   |   S                 BT       |
209	   |   |                  |  S----A-----S
210    S------H---A----S             |       |
211	   |   |      S------T----H---S   |
212	   S   S             B    R       S
213
214A basically different cabling scheme is used with Twisted Pair cabling. Each
215of the TP cards has two RJ (phone-cord style) connectors.  The cards are
216then daisy-chained together using a cable connecting every two neighboring
217cards.  The ends are terminated with RJ 93 Ohm terminators which plug into
218the empty connectors of cards on the ends of the chain.  An example::
219
220	  ___________   ___________
221      _R_|_         _|_|_         _|_R_
222     |     |       |     |       |     |
223     |Card |       |Card |       |Card |
224     |_____|       |_____|       |_____|
225
226
227There are also hubs for the TP topology.  There is nothing difficult
228involved in using them; you just connect a TP chain to a hub on any end or
229even at both.  This way you can create almost any network configuration.
230The maximum of 11 hubs between any two computers on the net applies here as
231well.  An example::
232
233    RP-------P--------P--------H-----P------P-----PR
234			       |
235      RP-----H--------P--------H-----P------PR
236	     |                 |
237	     PR                PR
238
239    R - RJ Terminator
240    P - TP Card
241    H - TP Hub
242
243Like any network, ARCnet has a limited cable length.  These are the maximum
244cable lengths between two active ends (an active end being an active hub or
245a STAR card).
246
247		========== ======= ===========
248		RG-62       93 Ohm up to 650 m
249		RG-59/U     75 Ohm up to 457 m
250		RG-11/U     75 Ohm up to 533 m
251		IBM Type 1 150 Ohm up to 200 m
252		IBM Type 3 100 Ohm up to 100 m
253		========== ======= ===========
254
255The maximum length of all cables connected to a passive hub is limited to 65
256meters for RG-62 cabling; less for others.  You can see that using passive
257hubs in a large network is a bad idea. The maximum length of a single "BUS
258Trunk" is about 300 meters for RG-62. The maximum distance between the two
259most distant points of the net is limited to 3000 meters. The maximum length
260of a TP cable between two cards/hubs is 650 meters.
261
262
263Setting the Jumpers
264===================
265
266All ARCnet cards should have a total of four or five different settings:
267
268  - the I/O address:  this is the "port" your ARCnet card is on.  Probed
269    values in the Linux ARCnet driver are only from 0x200 through 0x3F0. (If
270    your card has additional ones, which is possible, please tell me.) This
271    should not be the same as any other device on your system.  According to
272    a doc I got from Novell, MS Windows prefers values of 0x300 or more,
273    eating net connections on my system (at least) otherwise.  My guess is
274    this may be because, if your card is at 0x2E0, probing for a serial port
275    at 0x2E8 will reset the card and probably mess things up royally.
276
277	- Avery's favourite: 0x300.
278
279  - the IRQ: on  8-bit cards, it might be 2 (9), 3, 4, 5, or 7.
280	     on 16-bit cards, it might be 2 (9), 3, 4, 5, 7, or 10-15.
281
282    Make sure this is different from any other card on your system.  Note
283    that IRQ2 is the same as IRQ9, as far as Linux is concerned.  You can
284    "cat /proc/interrupts" for a somewhat complete list of which ones are in
285    use at any given time.  Here is a list of common usages from Vojtech
286    Pavlik <vojtech@suse.cz>:
287
288	("Not on bus" means there is no way for a card to generate this
289	interrupt)
290
291	======   =========================================================
292	IRQ  0   Timer 0 (Not on bus)
293	IRQ  1   Keyboard (Not on bus)
294	IRQ  2   IRQ Controller 2 (Not on bus, nor does interrupt the CPU)
295	IRQ  3   COM2
296	IRQ  4   COM1
297	IRQ  5   FREE (LPT2 if you have it; sometimes COM3; maybe PLIP)
298	IRQ  6   Floppy disk controller
299	IRQ  7   FREE (LPT1 if you don't use the polling driver; PLIP)
300	IRQ  8   Realtime Clock Interrupt (Not on bus)
301	IRQ  9   FREE (VGA vertical sync interrupt if enabled)
302	IRQ 10   FREE
303	IRQ 11   FREE
304	IRQ 12   FREE
305	IRQ 13   Numeric Coprocessor (Not on bus)
306	IRQ 14   Fixed Disk Controller
307	IRQ 15   FREE (Fixed Disk Controller 2 if you have it)
308	======   =========================================================
309
310
311	.. note::
312
313	   IRQ 9 is used on some video cards for the "vertical retrace"
314	   interrupt.  This interrupt would have been handy for things like
315	   video games, as it occurs exactly once per screen refresh, but
316	   unfortunately IBM cancelled this feature starting with the original
317	   VGA and thus many VGA/SVGA cards do not support it.  For this
318	   reason, no modern software uses this interrupt and it can almost
319	   always be safely disabled, if your video card supports it at all.
320
321	If your card for some reason CANNOT disable this IRQ (usually there
322	is a jumper), one solution would be to clip the printed circuit
323	contact on the board: it's the fourth contact from the left on the
324	back side.  I take no responsibility if you try this.
325
326	- Avery's favourite: IRQ2 (actually IRQ9).  Watch that VGA, though.
327
328  - the memory address:  Unlike most cards, ARCnets use "shared memory" for
329    copying buffers around.  Make SURE it doesn't conflict with any other
330    used memory in your system!
331
332    ::
333
334	A0000		- VGA graphics memory (ok if you don't have VGA)
335	B0000		- Monochrome text mode
336	C0000		\  One of these is your VGA BIOS - usually C0000.
337	E0000		/
338	F0000		- System BIOS
339
340    Anything less than 0xA0000 is, well, a BAD idea since it isn't above
341    640k.
342
343	- Avery's favourite: 0xD0000
344
345  - the station address:  Every ARCnet card has its own "unique" network
346    address from 0 to 255.  Unlike Ethernet, you can set this address
347    yourself with a jumper or switch (or on some cards, with special
348    software).  Since it's only 8 bits, you can only have 254 ARCnet cards
349    on a network.  DON'T use 0 or 255, since these are reserved (although
350    neat stuff will probably happen if you DO use them).  By the way, if you
351    haven't already guessed, don't set this the same as any other ARCnet on
352    your network!
353
354	- Avery's favourite:  3 and 4.  Not that it matters.
355
356  - There may be ETS1 and ETS2 settings.  These may or may not make a
357    difference on your card (many manuals call them "reserved"), but are
358    used to change the delays used when powering up a computer on the
359    network.  This is only necessary when wiring VERY long range ARCnet
360    networks, on the order of 4km or so; in any case, the only real
361    requirement here is that all cards on the network with ETS1 and ETS2
362    jumpers have them in the same position.  Chris Hindy <chrish@io.org>
363    sent in a chart with actual values for this:
364
365	======= ======= =============== ====================
366	ET1	ET2	Response Time	Reconfiguration Time
367	======= ======= =============== ====================
368	open	open	74.7us		840us
369	open	closed	283.4us		1680us
370	closed	open	561.8us		1680us
371	closed	closed	1118.6us	1680us
372	======= ======= =============== ====================
373
374    Make sure you set ETS1 and ETS2 to the SAME VALUE for all cards on your
375    network.
376
377Also, on many cards (not mine, though) there are red and green LED's.
378Vojtech Pavlik <vojtech@suse.cz> tells me this is what they mean:
379
380	=============== =============== =====================================
381	GREEN           RED             Status
382	=============== =============== =====================================
383	OFF             OFF             Power off
384	OFF             Short flashes   Cabling problems (broken cable or not
385					terminated)
386	OFF (short)     ON              Card init
387	ON              ON              Normal state - everything OK, nothing
388					happens
389	ON              Long flashes    Data transfer
390	ON              OFF             Never happens (maybe when wrong ID)
391	=============== =============== =====================================
392
393
394The following is all the specific information people have sent me about
395their own particular ARCnet cards.  It is officially a mess, and contains
396huge amounts of duplicated information.  I have no time to fix it.  If you
397want to, PLEASE DO!  Just send me a 'diff -u' of all your changes.
398
399The model # is listed right above specifics for that card, so you should be
400able to use your text viewer's "search" function to find the entry you want.
401If you don't KNOW what kind of card you have, try looking through the
402various diagrams to see if you can tell.
403
404If your model isn't listed and/or has different settings, PLEASE PLEASE
405tell me.  I had to figure mine out without the manual, and it WASN'T FUN!
406
407Even if your ARCnet model isn't listed, but has the same jumpers as another
408model that is, please e-mail me to say so.
409
410Cards Listed in this file (in this order, mostly):
411
412	=============== ======================= ====
413	Manufacturer	Model #			Bits
414	=============== ======================= ====
415	SMC		PC100			8
416	SMC		PC110			8
417	SMC		PC120			8
418	SMC		PC130			8
419	SMC		PC270E			8
420	SMC		PC500			16
421	SMC		PC500Longboard		16
422	SMC		PC550Longboard		16
423	SMC		PC600			16
424	SMC		PC710			8
425	SMC?		LCS-8830(-T)		8/16
426	Puredata	PDI507			8
427	CNet Tech	CN120-Series		8
428	CNet Tech	CN160-Series		16
429	Lantech?	UM9065L chipset		8
430	Acer		5210-003		8
431	Datapoint?	LAN-ARC-8		8
432	Topware		TA-ARC/10		8
433	Thomas-Conrad	500-6242-0097 REV A	8
434	Waterloo?	(C)1985 Waterloo Micro. 8
435	No Name		--			8/16
436	No Name		Taiwan R.O.C?		8
437	No Name		Model 9058		8
438	Tiara		Tiara Lancard?		8
439	=============== ======================= ====
440
441
442* SMC = Standard Microsystems Corp.
443* CNet Tech = CNet Technology, Inc.
444
445Unclassified Stuff
446==================
447
448  - Please send any other information you can find.
449
450  - And some other stuff (more info is welcome!)::
451
452     From: root@ultraworld.xs4all.nl (Timo Hilbrink)
453     To: apenwarr@foxnet.net (Avery Pennarun)
454     Date: Wed, 26 Oct 1994 02:10:32 +0000 (GMT)
455     Reply-To: timoh@xs4all.nl
456
457     [...parts deleted...]
458
459     About the jumpers: On my PC130 there is one more jumper, located near the
460     cable-connector and it's for changing to star or bus topology;
461     closed: star - open: bus
462     On the PC500 are some more jumper-pins, one block labeled with RX,PDN,TXI
463     and another with ALE,LA17,LA18,LA19 these are undocumented..
464
465     [...more parts deleted...]
466
467     --- CUT ---
468
469Standard Microsystems Corp (SMC)
470================================
471
472PC100, PC110, PC120, PC130 (8-bit cards) and PC500, PC600 (16-bit cards)
473------------------------------------------------------------------------
474
475  - mainly from Avery Pennarun <apenwarr@worldvisions.ca>.  Values depicted
476    are from Avery's setup.
477  - special thanks to Timo Hilbrink <timoh@xs4all.nl> for noting that PC120,
478    130, 500, and 600 all have the same switches as Avery's PC100.
479    PC500/600 have several extra, undocumented pins though. (?)
480  - PC110 settings were verified by Stephen A. Wood <saw@cebaf.gov>
481  - Also, the JP- and S-numbers probably don't match your card exactly.  Try
482    to find jumpers/switches with the same number of settings - it's
483    probably more reliable.
484
485::
486
487	     JP5		       [|]    :    :    :    :
488	(IRQ Setting)		      IRQ2  IRQ3 IRQ4 IRQ5 IRQ7
489			Put exactly one jumper on exactly one set of pins.
490
491
492				  1  2   3  4  5  6   7  8  9 10
493	     S1                /----------------------------------\
494	(I/O and Memory        |  1  1 * 0  0  0  0 * 1  1  0  1  |
495	 addresses)            \----------------------------------/
496				  |--|   |--------|   |--------|
497				  (a)       (b)           (m)
498
499			WARNING.  It's very important when setting these which way
500			you're holding the card, and which way you think is '1'!
501
502			If you suspect that your settings are not being made
503			correctly, try reversing the direction or inverting the
504			switch positions.
505
506			a: The first digit of the I/O address.
507				Setting		Value
508				-------		-----
509				00		0
510				01		1
511				10		2
512				11		3
513
514			b: The second digit of the I/O address.
515				Setting		Value
516				-------		-----
517				0000		0
518				0001		1
519				0010		2
520				...		...
521				1110		E
522				1111		F
523
524			The I/O address is in the form ab0.  For example, if
525			a is 0x2 and b is 0xE, the address will be 0x2E0.
526
527			DO NOT SET THIS LESS THAN 0x200!!!!!
528
529
530			m: The first digit of the memory address.
531				Setting		Value
532				-------		-----
533				0000		0
534				0001		1
535				0010		2
536				...		...
537				1110		E
538				1111		F
539
540			The memory address is in the form m0000.  For example, if
541			m is D, the address will be 0xD0000.
542
543			DO NOT SET THIS TO C0000, F0000, OR LESS THAN A0000!
544
545				  1  2  3  4  5  6  7  8
546	     S2                /--------------------------\
547	(Station Address)      |  1  1  0  0  0  0  0  0  |
548			       \--------------------------/
549
550				Setting		Value
551				-------		-----
552				00000000	00
553				10000000	01
554				01000000	02
555				...
556				01111111	FE
557				11111111	FF
558
559			Note that this is binary with the digits reversed!
560
561			DO NOT SET THIS TO 0 OR 255 (0xFF)!
562
563
564PC130E/PC270E (8-bit cards)
565---------------------------
566
567  - from Juergen Seifert <seifert@htwm.de>
568
569This description has been written by Juergen Seifert <seifert@htwm.de>
570using information from the following Original SMC Manual
571
572	     "Configuration Guide for ARCNET(R)-PC130E/PC270 Network
573	     Controller Boards Pub. # 900.044A June, 1989"
574
575ARCNET is a registered trademark of the Datapoint Corporation
576SMC is a registered trademark of the Standard Microsystems Corporation
577
578The PC130E is an enhanced version of the PC130 board, is equipped with a
579standard BNC female connector for connection to RG-62/U coax cable.
580Since this board is designed both for point-to-point connection in star
581networks and for connection to bus networks, it is downwardly compatible
582with all the other standard boards designed for coax networks (that is,
583the PC120, PC110 and PC100 star topology boards and the PC220, PC210 and
584PC200 bus topology boards).
585
586The PC270E is an enhanced version of the PC260 board, is equipped with two
587modular RJ11-type jacks for connection to twisted pair wiring.
588It can be used in a star or a daisy-chained network.
589
590::
591
592	 8 7 6 5 4 3 2 1
593    ________________________________________________________________
594   |   |       S1        |                                          |
595   |   |_________________|                                          |
596   |    Offs|Base |I/O Addr                                         |
597   |     RAM Addr |                                              ___|
598   |         ___  ___                                       CR3 |___|
599   |        |   \/   |                                      CR4 |___|
600   |        |  PROM  |                                           ___|
601   |        |        |                                        N |   | 8
602   |        | SOCKET |                                        o |   | 7
603   |        |________|                                        d |   | 6
604   |                   ___________________                    e |   | 5
605   |                  |                   |                   A | S | 4
606   |       |oo| EXT2  |                   |                   d | 2 | 3
607   |       |oo| EXT1  |       SMC         |                   d |   | 2
608   |       |oo| ROM   |      90C63        |                   r |___| 1
609   |       |oo| IRQ7  |                   |               |o|  _____|
610   |       |oo| IRQ5  |                   |               |o| | J1  |
611   |       |oo| IRQ4  |                   |              STAR |_____|
612   |       |oo| IRQ3  |                   |                   | J2  |
613   |       |oo| IRQ2  |___________________|                   |_____|
614   |___                                               ______________|
615       |                                             |
616       |_____________________________________________|
617
618Legend::
619
620  SMC 90C63	ARCNET Controller / Transceiver /Logic
621  S1	1-3:	I/O Base Address Select
622	4-6:	Memory Base Address Select
623	7-8:	RAM Offset Select
624  S2	1-8:	Node ID Select
625  EXT		Extended Timeout Select
626  ROM		ROM Enable Select
627  STAR		Selected - Star Topology	(PC130E only)
628		Deselected - Bus Topology	(PC130E only)
629  CR3/CR4	Diagnostic LEDs
630  J1		BNC RG62/U Connector		(PC130E only)
631  J1		6-position Telephone Jack	(PC270E only)
632  J2		6-position Telephone Jack	(PC270E only)
633
634Setting one of the switches to Off/Open means "1", On/Closed means "0".
635
636
637Setting the Node ID
638^^^^^^^^^^^^^^^^^^^
639
640The eight switches in group S2 are used to set the node ID.
641These switches work in a way similar to the PC100-series cards; see that
642entry for more information.
643
644
645Setting the I/O Base Address
646^^^^^^^^^^^^^^^^^^^^^^^^^^^^
647
648The first three switches in switch group S1 are used to select one
649of eight possible I/O Base addresses using the following table::
650
651
652   Switch | Hex I/O
653   1 2 3  | Address
654   -------|--------
655   0 0 0  |  260
656   0 0 1  |  290
657   0 1 0  |  2E0  (Manufacturer's default)
658   0 1 1  |  2F0
659   1 0 0  |  300
660   1 0 1  |  350
661   1 1 0  |  380
662   1 1 1  |  3E0
663
664
665Setting the Base Memory (RAM) buffer Address
666^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
667
668The memory buffer requires 2K of a 16K block of RAM. The base of this
66916K block can be located in any of eight positions.
670Switches 4-6 of switch group S1 select the Base of the 16K block.
671Within that 16K address space, the buffer may be assigned any one of four
672positions, determined by the offset, switches 7 and 8 of group S1.
673
674::
675
676   Switch     | Hex RAM | Hex ROM
677   4 5 6  7 8 | Address | Address *)
678   -----------|---------|-----------
679   0 0 0  0 0 |  C0000  |  C2000
680   0 0 0  0 1 |  C0800  |  C2000
681   0 0 0  1 0 |  C1000  |  C2000
682   0 0 0  1 1 |  C1800  |  C2000
683	      |         |
684   0 0 1  0 0 |  C4000  |  C6000
685   0 0 1  0 1 |  C4800  |  C6000
686   0 0 1  1 0 |  C5000  |  C6000
687   0 0 1  1 1 |  C5800  |  C6000
688	      |         |
689   0 1 0  0 0 |  CC000  |  CE000
690   0 1 0  0 1 |  CC800  |  CE000
691   0 1 0  1 0 |  CD000  |  CE000
692   0 1 0  1 1 |  CD800  |  CE000
693	      |         |
694   0 1 1  0 0 |  D0000  |  D2000  (Manufacturer's default)
695   0 1 1  0 1 |  D0800  |  D2000
696   0 1 1  1 0 |  D1000  |  D2000
697   0 1 1  1 1 |  D1800  |  D2000
698	      |         |
699   1 0 0  0 0 |  D4000  |  D6000
700   1 0 0  0 1 |  D4800  |  D6000
701   1 0 0  1 0 |  D5000  |  D6000
702   1 0 0  1 1 |  D5800  |  D6000
703	      |         |
704   1 0 1  0 0 |  D8000  |  DA000
705   1 0 1  0 1 |  D8800  |  DA000
706   1 0 1  1 0 |  D9000  |  DA000
707   1 0 1  1 1 |  D9800  |  DA000
708	      |         |
709   1 1 0  0 0 |  DC000  |  DE000
710   1 1 0  0 1 |  DC800  |  DE000
711   1 1 0  1 0 |  DD000  |  DE000
712   1 1 0  1 1 |  DD800  |  DE000
713	      |         |
714   1 1 1  0 0 |  E0000  |  E2000
715   1 1 1  0 1 |  E0800  |  E2000
716   1 1 1  1 0 |  E1000  |  E2000
717   1 1 1  1 1 |  E1800  |  E2000
718
719  *) To enable the 8K Boot PROM install the jumper ROM.
720     The default is jumper ROM not installed.
721
722
723Setting the Timeouts and Interrupt
724^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
725
726The jumpers labeled EXT1 and EXT2 are used to determine the timeout
727parameters. These two jumpers are normally left open.
728
729To select a hardware interrupt level set one (only one!) of the jumpers
730IRQ2, IRQ3, IRQ4, IRQ5, IRQ7. The Manufacturer's default is IRQ2.
731
732
733Configuring the PC130E for Star or Bus Topology
734^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
735
736The single jumper labeled STAR is used to configure the PC130E board for
737star or bus topology.
738When the jumper is installed, the board may be used in a star network, when
739it is removed, the board can be used in a bus topology.
740
741
742Diagnostic LEDs
743^^^^^^^^^^^^^^^
744
745Two diagnostic LEDs are visible on the rear bracket of the board.
746The green LED monitors the network activity: the red one shows the
747board activity::
748
749 Green  | Status               Red      | Status
750 -------|-------------------   ---------|-------------------
751  on    | normal activity      flash/on | data transfer
752  blink | reconfiguration      off      | no data transfer;
753  off   | defective board or            | incorrect memory or
754	| node ID is zero               | I/O address
755
756
757PC500/PC550 Longboard (16-bit cards)
758------------------------------------
759
760  - from Juergen Seifert <seifert@htwm.de>
761
762
763  .. note::
764
765      There is another Version of the PC500 called Short Version, which
766      is different in hard- and software! The most important differences
767      are:
768
769      - The long board has no Shared memory.
770      - On the long board the selection of the interrupt is done by binary
771	coded switch, on the short board directly by jumper.
772
773[Avery's note: pay special attention to that: the long board HAS NO SHARED
774MEMORY.  This means the current Linux-ARCnet driver can't use these cards.
775I have obtained a PC500Longboard and will be doing some experiments on it in
776the future, but don't hold your breath.  Thanks again to Juergen Seifert for
777his advice about this!]
778
779This description has been written by Juergen Seifert <seifert@htwm.de>
780using information from the following Original SMC Manual
781
782	 "Configuration Guide for SMC ARCNET-PC500/PC550
783	 Series Network Controller Boards Pub. # 900.033 Rev. A
784	 November, 1989"
785
786ARCNET is a registered trademark of the Datapoint Corporation
787SMC is a registered trademark of the Standard Microsystems Corporation
788
789The PC500 is equipped with a standard BNC female connector for connection
790to RG-62/U coax cable.
791The board is designed both for point-to-point connection in star networks
792and for connection to bus networks.
793
794The PC550 is equipped with two modular RJ11-type jacks for connection
795to twisted pair wiring.
796It can be used in a star or a daisy-chained (BUS) network.
797
798::
799
800       1
801       0 9 8 7 6 5 4 3 2 1     6 5 4 3 2 1
802    ____________________________________________________________________
803   < |         SW1         | |     SW2     |                            |
804   > |_____________________| |_____________|                            |
805   <   IRQ    |I/O Addr                                                 |
806   >                                                                 ___|
807   <                                                            CR4 |___|
808   >                                                            CR3 |___|
809   <                                                                 ___|
810   >                                                              N |   | 8
811   <                                                              o |   | 7
812   >                                                              d | S | 6
813   <                                                              e | W | 5
814   >                                                              A | 3 | 4
815   <                                                              d |   | 3
816   >                                                              d |   | 2
817   <                                                              r |___| 1
818   >                                                        |o|    _____|
819   <                                                        |o|   | J1  |
820   >  3 1                                                   JP6   |_____|
821   < |o|o| JP2                                                    | J2  |
822   > |o|o|                                                        |_____|
823   <  4 2__                                               ______________|
824   >    |  |                                             |
825   <____|  |_____________________________________________|
826
827Legend::
828
829  SW1	1-6:	I/O Base Address Select
830	7-10:	Interrupt Select
831  SW2	1-6:	Reserved for Future Use
832  SW3	1-8:	Node ID Select
833  JP2	1-4:	Extended Timeout Select
834  JP6		Selected - Star Topology	(PC500 only)
835		Deselected - Bus Topology	(PC500 only)
836  CR3	Green	Monitors Network Activity
837  CR4	Red	Monitors Board Activity
838  J1		BNC RG62/U Connector		(PC500 only)
839  J1		6-position Telephone Jack	(PC550 only)
840  J2		6-position Telephone Jack	(PC550 only)
841
842Setting one of the switches to Off/Open means "1", On/Closed means "0".
843
844
845Setting the Node ID
846^^^^^^^^^^^^^^^^^^^
847
848The eight switches in group SW3 are used to set the node ID. Each node
849attached to the network must have an unique node ID which must be
850different from 0.
851Switch 1 serves as the least significant bit (LSB).
852
853The node ID is the sum of the values of all switches set to "1"
854These values are::
855
856    Switch | Value
857    -------|-------
858      1    |   1
859      2    |   2
860      3    |   4
861      4    |   8
862      5    |  16
863      6    |  32
864      7    |  64
865      8    | 128
866
867Some Examples::
868
869    Switch         | Hex     | Decimal
870   8 7 6 5 4 3 2 1 | Node ID | Node ID
871   ----------------|---------|---------
872   0 0 0 0 0 0 0 0 |    not allowed
873   0 0 0 0 0 0 0 1 |    1    |    1
874   0 0 0 0 0 0 1 0 |    2    |    2
875   0 0 0 0 0 0 1 1 |    3    |    3
876       . . .       |         |
877   0 1 0 1 0 1 0 1 |   55    |   85
878       . . .       |         |
879   1 0 1 0 1 0 1 0 |   AA    |  170
880       . . .       |         |
881   1 1 1 1 1 1 0 1 |   FD    |  253
882   1 1 1 1 1 1 1 0 |   FE    |  254
883   1 1 1 1 1 1 1 1 |   FF    |  255
884
885
886Setting the I/O Base Address
887^^^^^^^^^^^^^^^^^^^^^^^^^^^^
888
889The first six switches in switch group SW1 are used to select one
890of 32 possible I/O Base addresses using the following table::
891
892   Switch       | Hex I/O
893   6 5  4 3 2 1 | Address
894   -------------|--------
895   0 1  0 0 0 0 |  200
896   0 1  0 0 0 1 |  210
897   0 1  0 0 1 0 |  220
898   0 1  0 0 1 1 |  230
899   0 1  0 1 0 0 |  240
900   0 1  0 1 0 1 |  250
901   0 1  0 1 1 0 |  260
902   0 1  0 1 1 1 |  270
903   0 1  1 0 0 0 |  280
904   0 1  1 0 0 1 |  290
905   0 1  1 0 1 0 |  2A0
906   0 1  1 0 1 1 |  2B0
907   0 1  1 1 0 0 |  2C0
908   0 1  1 1 0 1 |  2D0
909   0 1  1 1 1 0 |  2E0 (Manufacturer's default)
910   0 1  1 1 1 1 |  2F0
911   1 1  0 0 0 0 |  300
912   1 1  0 0 0 1 |  310
913   1 1  0 0 1 0 |  320
914   1 1  0 0 1 1 |  330
915   1 1  0 1 0 0 |  340
916   1 1  0 1 0 1 |  350
917   1 1  0 1 1 0 |  360
918   1 1  0 1 1 1 |  370
919   1 1  1 0 0 0 |  380
920   1 1  1 0 0 1 |  390
921   1 1  1 0 1 0 |  3A0
922   1 1  1 0 1 1 |  3B0
923   1 1  1 1 0 0 |  3C0
924   1 1  1 1 0 1 |  3D0
925   1 1  1 1 1 0 |  3E0
926   1 1  1 1 1 1 |  3F0
927
928
929Setting the Interrupt
930^^^^^^^^^^^^^^^^^^^^^
931
932Switches seven through ten of switch group SW1 are used to select the
933interrupt level. The interrupt level is binary coded, so selections
934from 0 to 15 would be possible, but only the following eight values will
935be supported: 3, 4, 5, 7, 9, 10, 11, 12.
936
937::
938
939   Switch   | IRQ
940   10 9 8 7 |
941   ---------|--------
942    0 0 1 1 |  3
943    0 1 0 0 |  4
944    0 1 0 1 |  5
945    0 1 1 1 |  7
946    1 0 0 1 |  9 (=2) (default)
947    1 0 1 0 | 10
948    1 0 1 1 | 11
949    1 1 0 0 | 12
950
951
952Setting the Timeouts
953^^^^^^^^^^^^^^^^^^^^
954
955The two jumpers JP2 (1-4) are used to determine the timeout parameters.
956These two jumpers are normally left open.
957Refer to the COM9026 Data Sheet for alternate configurations.
958
959
960Configuring the PC500 for Star or Bus Topology
961^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
962
963The single jumper labeled JP6 is used to configure the PC500 board for
964star or bus topology.
965When the jumper is installed, the board may be used in a star network, when
966it is removed, the board can be used in a bus topology.
967
968
969Diagnostic LEDs
970^^^^^^^^^^^^^^^
971
972Two diagnostic LEDs are visible on the rear bracket of the board.
973The green LED monitors the network activity: the red one shows the
974board activity::
975
976 Green  | Status               Red      | Status
977 -------|-------------------   ---------|-------------------
978  on    | normal activity      flash/on | data transfer
979  blink | reconfiguration      off      | no data transfer;
980  off   | defective board or            | incorrect memory or
981	| node ID is zero               | I/O address
982
983
984PC710 (8-bit card)
985------------------
986
987  - from J.S. van Oosten <jvoosten@compiler.tdcnet.nl>
988
989Note: this data is gathered by experimenting and looking at info of other
990cards. However, I'm sure I got 99% of the settings right.
991
992The SMC710 card resembles the PC270 card, but is much more basic (i.e. no
993LEDs, RJ11 jacks, etc.) and 8 bit. Here's a little drawing::
994
995    _______________________________________
996   | +---------+  +---------+              |____
997   | |   S2    |  |   S1    |              |
998   | +---------+  +---------+              |
999   |                                       |
1000   |  +===+    __                          |
1001   |  | R |   |  | X-tal                 ###___
1002   |  | O |   |__|                      ####__'|
1003   |  | M |    ||                        ###
1004   |  +===+                                |
1005   |                                       |
1006   |   .. JP1   +----------+               |
1007   |   ..       | big chip |               |
1008   |   ..       |  90C63   |               |
1009   |   ..       |          |               |
1010   |   ..       +----------+               |
1011    -------                     -----------
1012	   |||||||||||||||||||||
1013
1014The row of jumpers at JP1 actually consists of 8 jumpers, (sometimes
1015labelled) the same as on the PC270, from top to bottom: EXT2, EXT1, ROM,
1016IRQ7, IRQ5, IRQ4, IRQ3, IRQ2 (gee, wonder what they would do? :-) )
1017
1018S1 and S2 perform the same function as on the PC270, only their numbers
1019are swapped (S1 is the nodeaddress, S2 sets IO- and RAM-address).
1020
1021I know it works when connected to a PC110 type ARCnet board.
1022
1023
1024*****************************************************************************
1025
1026Possibly SMC
1027============
1028
1029LCS-8830(-T) (8 and 16-bit cards)
1030---------------------------------
1031
1032  - from Mathias Katzer <mkatzer@HRZ.Uni-Bielefeld.DE>
1033  - Marek Michalkiewicz <marekm@i17linuxb.ists.pwr.wroc.pl> says the
1034    LCS-8830 is slightly different from LCS-8830-T.  These are 8 bit, BUS
1035    only (the JP0 jumper is hardwired), and BNC only.
1036
1037This is a LCS-8830-T made by SMC, I think ('SMC' only appears on one PLCC,
1038nowhere else, not even on the few Xeroxed sheets from the manual).
1039
1040SMC ARCnet Board Type LCS-8830-T::
1041
1042     ------------------------------------
1043    |                                    |
1044    |              JP3 88  8 JP2         |
1045    |       #####      | \               |
1046    |       #####    ET1 ET2          ###|
1047    |                              8  ###|
1048    |  U3   SW 1                  JP0 ###|  Phone Jacks
1049    |  --                             ###|
1050    | |  |                               |
1051    | |  |   SW2                         |
1052    | |  |                               |
1053    | |  |  #####                        |
1054    |  --   #####                       ####  BNC Connector
1055    |                                   ####
1056    |   888888 JP1                       |
1057    |   234567                           |
1058     --                           -------
1059       |||||||||||||||||||||||||||
1060	--------------------------
1061
1062
1063  SW1: DIP-Switches for Station Address
1064  SW2: DIP-Switches for Memory Base and I/O Base addresses
1065
1066  JP0: If closed, internal termination on (default open)
1067  JP1: IRQ Jumpers
1068  JP2: Boot-ROM enabled if closed
1069  JP3: Jumpers for response timeout
1070
1071  U3: Boot-ROM Socket
1072
1073
1074  ET1 ET2     Response Time     Idle Time    Reconfiguration Time
1075
1076		 78                86               840
1077   X            285               316              1680
1078       X        563               624              1680
1079   X   X       1130              1237              1680
1080
1081  (X means closed jumper)
1082
1083  (DIP-Switch downwards means "0")
1084
1085The station address is binary-coded with SW1.
1086
1087The I/O base address is coded with DIP-Switches 6,7 and 8 of SW2:
1088
1089========	========
1090Switches        Base
1091678             Address
1092========	========
1093000		260-26f
1094100		290-29f
1095010		2e0-2ef
1096110		2f0-2ff
1097001		300-30f
1098101		350-35f
1099011		380-38f
1100111 		3e0-3ef
1101========	========
1102
1103
1104DIP Switches 1-5 of SW2 encode the RAM and ROM Address Range:
1105
1106========        ============= ================
1107Switches        RAM           ROM
110812345           Address Range  Address Range
1109========        ============= ================
111000000		C:0000-C:07ff	C:2000-C:3fff
111110000		C:0800-C:0fff
111201000		C:1000-C:17ff
111311000		C:1800-C:1fff
111400100		C:4000-C:47ff	C:6000-C:7fff
111510100		C:4800-C:4fff
111601100		C:5000-C:57ff
111711100		C:5800-C:5fff
111800010		C:C000-C:C7ff	C:E000-C:ffff
111910010		C:C800-C:Cfff
112001010		C:D000-C:D7ff
112111010		C:D800-C:Dfff
112200110		D:0000-D:07ff	D:2000-D:3fff
112310110		D:0800-D:0fff
112401110		D:1000-D:17ff
112511110		D:1800-D:1fff
112600001		D:4000-D:47ff	D:6000-D:7fff
112710001		D:4800-D:4fff
112801001		D:5000-D:57ff
112911001		D:5800-D:5fff
113000101		D:8000-D:87ff	D:A000-D:bfff
113110101		D:8800-D:8fff
113201101		D:9000-D:97ff
113311101		D:9800-D:9fff
113400011		D:C000-D:c7ff	D:E000-D:ffff
113510011		D:C800-D:cfff
113601011		D:D000-D:d7ff
113711011		D:D800-D:dfff
113800111		E:0000-E:07ff	E:2000-E:3fff
113910111		E:0800-E:0fff
114001111		E:1000-E:17ff
114111111		E:1800-E:1fff
1142========        ============= ================
1143
1144
1145PureData Corp
1146=============
1147
1148PDI507 (8-bit card)
1149--------------------
1150
1151  - from Mark Rejhon <mdrejhon@magi.com> (slight modifications by Avery)
1152  - Avery's note: I think PDI508 cards (but definitely NOT PDI508Plus cards)
1153    are mostly the same as this.  PDI508Plus cards appear to be mainly
1154    software-configured.
1155
1156Jumpers:
1157
1158	There is a jumper array at the bottom of the card, near the edge
1159	connector.  This array is labelled J1.  They control the IRQs and
1160	something else.  Put only one jumper on the IRQ pins.
1161
1162	ETS1, ETS2 are for timing on very long distance networks.  See the
1163	more general information near the top of this file.
1164
1165	There is a J2 jumper on two pins.  A jumper should be put on them,
1166	since it was already there when I got the card.  I don't know what
1167	this jumper is for though.
1168
1169	There is a two-jumper array for J3.  I don't know what it is for,
1170	but there were already two jumpers on it when I got the card.  It's
1171	a six pin grid in a two-by-three fashion.  The jumpers were
1172	configured as follows::
1173
1174	   .-------.
1175	 o | o   o |
1176	   :-------:    ------> Accessible end of card with connectors
1177	 o | o   o |             in this direction ------->
1178	   `-------'
1179
1180Carl de Billy <CARL@carainfo.com> explains J3 and J4:
1181
1182   J3 Diagram::
1183
1184	   .-------.
1185	 o | o   o |
1186	   :-------:    TWIST Technology
1187	 o | o   o |
1188	   `-------'
1189	   .-------.
1190	   | o   o | o
1191	   :-------:    COAX Technology
1192	   | o   o | o
1193	   `-------'
1194
1195  - If using coax cable in a bus topology the J4 jumper must be removed;
1196    place it on one pin.
1197
1198  - If using bus topology with twisted pair wiring move the J3
1199    jumpers so they connect the middle pin and the pins closest to the RJ11
1200    Connectors.  Also the J4 jumper must be removed; place it on one pin of
1201    J4 jumper for storage.
1202
1203  - If using  star topology with twisted pair wiring move the J3
1204    jumpers so they connect the middle pin and the pins closest to the RJ11
1205    connectors.
1206
1207
1208DIP Switches:
1209
1210	The DIP switches accessible on the accessible end of the card while
1211	it is installed, is used to set the ARCnet address.  There are 8
1212	switches.  Use an address from 1 to 254
1213
1214	==========      =========================
1215	Switch No.	ARCnet address
1216	12345678
1217	==========      =========================
1218	00000000	FF  	(Don't use this!)
1219	00000001	FE
1220	00000010	FD
1221	...
1222	11111101	2
1223	11111110	1
1224	11111111	0	(Don't use this!)
1225	==========      =========================
1226
1227	There is another array of eight DIP switches at the top of the
1228	card.  There are five labelled MS0-MS4 which seem to control the
1229	memory address, and another three labelled IO0-IO2 which seem to
1230	control the base I/O address of the card.
1231
1232	This was difficult to test by trial and error, and the I/O addresses
1233	are in a weird order.  This was tested by setting the DIP switches,
1234	rebooting the computer, and attempting to load ARCETHER at various
1235	addresses (mostly between 0x200 and 0x400).  The address that caused
1236	the red transmit LED to blink, is the one that I thought works.
1237
1238	Also, the address 0x3D0 seem to have a special meaning, since the
1239	ARCETHER packet driver loaded fine, but without the red LED
1240	blinking.  I don't know what 0x3D0 is for though.  I recommend using
1241	an address of 0x300 since Windows may not like addresses below
1242	0x300.
1243
1244	=============   ===========
1245	IO Switch No.   I/O address
1246	210
1247	=============   ===========
1248	111             0x260
1249	110             0x290
1250	101             0x2E0
1251	100             0x2F0
1252	011             0x300
1253	010             0x350
1254	001             0x380
1255	000             0x3E0
1256	=============   ===========
1257
1258	The memory switches set a reserved address space of 0x1000 bytes
1259	(0x100 segment units, or 4k).  For example if I set an address of
1260	0xD000, it will use up addresses 0xD000 to 0xD100.
1261
1262	The memory switches were tested by booting using QEMM386 stealth,
1263	and using LOADHI to see what address automatically became excluded
1264	from the upper memory regions, and then attempting to load ARCETHER
1265	using these addresses.
1266
1267	I recommend using an ARCnet memory address of 0xD000, and putting
1268	the EMS page frame at 0xC000 while using QEMM stealth mode.  That
1269	way, you get contiguous high memory from 0xD100 almost all the way
1270	the end of the megabyte.
1271
1272	Memory Switch 0 (MS0) didn't seem to work properly when set to OFF
1273	on my card.  It could be malfunctioning on my card.  Experiment with
1274	it ON first, and if it doesn't work, set it to OFF.  (It may be a
1275	modifier for the 0x200 bit?)
1276
1277	=============   ============================================
1278	MS Switch No.
1279	43210           Memory address
1280	=============   ============================================
1281	00001           0xE100  (guessed - was not detected by QEMM)
1282	00011           0xE000  (guessed - was not detected by QEMM)
1283	00101           0xDD00
1284	00111           0xDC00
1285	01001           0xD900
1286	01011           0xD800
1287	01101           0xD500
1288	01111           0xD400
1289	10001           0xD100
1290	10011           0xD000
1291	10101           0xCD00
1292	10111           0xCC00
1293	11001           0xC900 (guessed - crashes tested system)
1294	11011           0xC800 (guessed - crashes tested system)
1295	11101           0xC500 (guessed - crashes tested system)
1296	11111           0xC400 (guessed - crashes tested system)
1297	=============   ============================================
1298
1299CNet Technology Inc. (8-bit cards)
1300==================================
1301
1302120 Series (8-bit cards)
1303------------------------
1304  - from Juergen Seifert <seifert@htwm.de>
1305
1306This description has been written by Juergen Seifert <seifert@htwm.de>
1307using information from the following Original CNet Manual
1308
1309	      "ARCNET USER'S MANUAL for
1310	      CN120A
1311	      CN120AB
1312	      CN120TP
1313	      CN120ST
1314	      CN120SBT
1315	      P/N:12-01-0007
1316	      Revision 3.00"
1317
1318ARCNET is a registered trademark of the Datapoint Corporation
1319
1320- P/N 120A   ARCNET 8 bit XT/AT Star
1321- P/N 120AB  ARCNET 8 bit XT/AT Bus
1322- P/N 120TP  ARCNET 8 bit XT/AT Twisted Pair
1323- P/N 120ST  ARCNET 8 bit XT/AT Star, Twisted Pair
1324- P/N 120SBT ARCNET 8 bit XT/AT Star, Bus, Twisted Pair
1325
1326::
1327
1328    __________________________________________________________________
1329   |                                                                  |
1330   |                                                               ___|
1331   |                                                          LED |___|
1332   |                                                               ___|
1333   |                                                            N |   | ID7
1334   |                                                            o |   | ID6
1335   |                                                            d | S | ID5
1336   |                                                            e | W | ID4
1337   |                     ___________________                    A | 2 | ID3
1338   |                    |                   |                   d |   | ID2
1339   |                    |                   |  1 2 3 4 5 6 7 8  d |   | ID1
1340   |                    |                   | _________________ r |___| ID0
1341   |                    |      90C65        ||       SW1       |  ____|
1342   |  JP 8 7            |                   ||_________________| |    |
1343   |    |o|o|  JP1      |                   |                    | J2 |
1344   |    |o|o|  |oo|     |                   |         JP 1 1 1   |    |
1345   |   ______________   |                   |            0 1 2   |____|
1346   |  |  PROM        |  |___________________|           |o|o|o|  _____|
1347   |  >  SOCKET      |  JP 6 5 4 3 2                    |o|o|o| | J1  |
1348   |  |______________|    |o|o|o|o|o|                   |o|o|o| |_____|
1349   |_____                 |o|o|o|o|o|                   ______________|
1350	 |                                             |
1351	 |_____________________________________________|
1352
1353Legend::
1354
1355  90C65       ARCNET Probe
1356  S1  1-5:    Base Memory Address Select
1357      6-8:    Base I/O Address Select
1358  S2  1-8:    Node ID Select (ID0-ID7)
1359  JP1     ROM Enable Select
1360  JP2     IRQ2
1361  JP3     IRQ3
1362  JP4     IRQ4
1363  JP5     IRQ5
1364  JP6     IRQ7
1365  JP7/JP8     ET1, ET2 Timeout Parameters
1366  JP10/JP11   Coax / Twisted Pair Select  (CN120ST/SBT only)
1367  JP12        Terminator Select       (CN120AB/ST/SBT only)
1368  J1      BNC RG62/U Connector        (all except CN120TP)
1369  J2      Two 6-position Telephone Jack   (CN120TP/ST/SBT only)
1370
1371Setting one of the switches to Off means "1", On means "0".
1372
1373
1374Setting the Node ID
1375^^^^^^^^^^^^^^^^^^^
1376
1377The eight switches in SW2 are used to set the node ID. Each node attached
1378to the network must have an unique node ID which must be different from 0.
1379Switch 1 (ID0) serves as the least significant bit (LSB).
1380
1381The node ID is the sum of the values of all switches set to "1"
1382These values are:
1383
1384   =======  ======  =====
1385   Switch   Label   Value
1386   =======  ======  =====
1387     1      ID0       1
1388     2      ID1       2
1389     3      ID2       4
1390     4      ID3       8
1391     5      ID4      16
1392     6      ID5      32
1393     7      ID6      64
1394     8      ID7     128
1395   =======  ======  =====
1396
1397Some Examples::
1398
1399    Switch         | Hex     | Decimal
1400   8 7 6 5 4 3 2 1 | Node ID | Node ID
1401   ----------------|---------|---------
1402   0 0 0 0 0 0 0 0 |    not allowed
1403   0 0 0 0 0 0 0 1 |    1    |    1
1404   0 0 0 0 0 0 1 0 |    2    |    2
1405   0 0 0 0 0 0 1 1 |    3    |    3
1406       . . .       |         |
1407   0 1 0 1 0 1 0 1 |   55    |   85
1408       . . .       |         |
1409   1 0 1 0 1 0 1 0 |   AA    |  170
1410       . . .       |         |
1411   1 1 1 1 1 1 0 1 |   FD    |  253
1412   1 1 1 1 1 1 1 0 |   FE    |  254
1413   1 1 1 1 1 1 1 1 |   FF    |  255
1414
1415
1416Setting the I/O Base Address
1417^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1418
1419The last three switches in switch block SW1 are used to select one
1420of eight possible I/O Base addresses using the following table::
1421
1422
1423   Switch      | Hex I/O
1424    6   7   8  | Address
1425   ------------|--------
1426   ON  ON  ON  |  260
1427   OFF ON  ON  |  290
1428   ON  OFF ON  |  2E0  (Manufacturer's default)
1429   OFF OFF ON  |  2F0
1430   ON  ON  OFF |  300
1431   OFF ON  OFF |  350
1432   ON  OFF OFF |  380
1433   OFF OFF OFF |  3E0
1434
1435
1436Setting the Base Memory (RAM) buffer Address
1437^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1438
1439The memory buffer (RAM) requires 2K. The base of this buffer can be
1440located in any of eight positions. The address of the Boot Prom is
1441memory base + 8K or memory base + 0x2000.
1442Switches 1-5 of switch block SW1 select the Memory Base address.
1443
1444::
1445
1446   Switch              | Hex RAM | Hex ROM
1447    1   2   3   4   5  | Address | Address *)
1448   --------------------|---------|-----------
1449   ON  ON  ON  ON  ON  |  C0000  |  C2000
1450   ON  ON  OFF ON  ON  |  C4000  |  C6000
1451   ON  ON  ON  OFF ON  |  CC000  |  CE000
1452   ON  ON  OFF OFF ON  |  D0000  |  D2000  (Manufacturer's default)
1453   ON  ON  ON  ON  OFF |  D4000  |  D6000
1454   ON  ON  OFF ON  OFF |  D8000  |  DA000
1455   ON  ON  ON  OFF OFF |  DC000  |  DE000
1456   ON  ON  OFF OFF OFF |  E0000  |  E2000
1457
1458  *) To enable the Boot ROM install the jumper JP1
1459
1460.. note::
1461
1462      Since the switches 1 and 2 are always set to ON it may be possible
1463      that they can be used to add an offset of 2K, 4K or 6K to the base
1464      address, but this feature is not documented in the manual and I
1465      haven't tested it yet.
1466
1467
1468Setting the Interrupt Line
1469^^^^^^^^^^^^^^^^^^^^^^^^^^
1470
1471To select a hardware interrupt level install one (only one!) of the jumpers
1472JP2, JP3, JP4, JP5, JP6. JP2 is the default::
1473
1474   Jumper | IRQ
1475   -------|-----
1476     2    |  2
1477     3    |  3
1478     4    |  4
1479     5    |  5
1480     6    |  7
1481
1482
1483Setting the Internal Terminator on CN120AB/TP/SBT
1484^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1485
1486The jumper JP12 is used to enable the internal terminator::
1487
1488			 -----
1489       0                |  0  |
1490     -----   ON         |     |  ON
1491    |  0  |             |  0  |
1492    |     |  OFF         -----   OFF
1493    |  0  |                0
1494     -----
1495   Terminator          Terminator
1496    disabled            enabled
1497
1498
1499Selecting the Connector Type on CN120ST/SBT
1500^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1501
1502::
1503
1504     JP10    JP11        JP10    JP11
1505			 -----   -----
1506       0       0        |  0  | |  0  |
1507     -----   -----      |     | |     |
1508    |  0  | |  0  |     |  0  | |  0  |
1509    |     | |     |      -----   -----
1510    |  0  | |  0  |        0       0
1511     -----   -----
1512     Coaxial Cable       Twisted Pair Cable
1513       (Default)
1514
1515
1516Setting the Timeout Parameters
1517^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1518
1519The jumpers labeled EXT1 and EXT2 are used to determine the timeout
1520parameters. These two jumpers are normally left open.
1521
1522
1523CNet Technology Inc. (16-bit cards)
1524===================================
1525
1526160 Series (16-bit cards)
1527-------------------------
1528  - from Juergen Seifert <seifert@htwm.de>
1529
1530This description has been written by Juergen Seifert <seifert@htwm.de>
1531using information from the following Original CNet Manual
1532
1533	      "ARCNET USER'S MANUAL for
1534	      CN160A CN160AB CN160TP
1535	      P/N:12-01-0006 Revision 3.00"
1536
1537ARCNET is a registered trademark of the Datapoint Corporation
1538
1539- P/N 160A   ARCNET 16 bit XT/AT Star
1540- P/N 160AB  ARCNET 16 bit XT/AT Bus
1541- P/N 160TP  ARCNET 16 bit XT/AT Twisted Pair
1542
1543::
1544
1545   ___________________________________________________________________
1546  <                             _________________________          ___|
1547  >               |oo| JP2     |                         |    LED |___|
1548  <               |oo| JP1     |        9026             |    LED |___|
1549  >                            |_________________________|         ___|
1550  <                                                             N |   | ID7
1551  >                                                      1      o |   | ID6
1552  <                                    1 2 3 4 5 6 7 8 9 0      d | S | ID5
1553  >         _______________           _____________________     e | W | ID4
1554  <        |     PROM      |         |         SW1         |    A | 2 | ID3
1555  >        >    SOCKET     |         |_____________________|    d |   | ID2
1556  <        |_______________|          | IO-Base   | MEM   |     d |   | ID1
1557  >                                                             r |___| ID0
1558  <                                                               ____|
1559  >                                                              |    |
1560  <                                                              | J1 |
1561  >                                                              |    |
1562  <                                                              |____|
1563  >                            1 1 1 1                                |
1564  <  3 4 5 6 7      JP     8 9 0 1 2 3                                |
1565  > |o|o|o|o|o|           |o|o|o|o|o|o|                               |
1566  < |o|o|o|o|o| __        |o|o|o|o|o|o|                    ___________|
1567  >            |  |                                       |
1568  <____________|  |_______________________________________|
1569
1570Legend::
1571
1572  9026            ARCNET Probe
1573  SW1 1-6:    Base I/O Address Select
1574      7-10:   Base Memory Address Select
1575  SW2 1-8:    Node ID Select (ID0-ID7)
1576  JP1/JP2     ET1, ET2 Timeout Parameters
1577  JP3-JP13    Interrupt Select
1578  J1      BNC RG62/U Connector        (CN160A/AB only)
1579  J1      Two 6-position Telephone Jack   (CN160TP only)
1580  LED
1581
1582Setting one of the switches to Off means "1", On means "0".
1583
1584
1585Setting the Node ID
1586^^^^^^^^^^^^^^^^^^^
1587
1588The eight switches in SW2 are used to set the node ID. Each node attached
1589to the network must have an unique node ID which must be different from 0.
1590Switch 1 (ID0) serves as the least significant bit (LSB).
1591
1592The node ID is the sum of the values of all switches set to "1"
1593These values are::
1594
1595   Switch | Label | Value
1596   -------|-------|-------
1597     1    | ID0   |   1
1598     2    | ID1   |   2
1599     3    | ID2   |   4
1600     4    | ID3   |   8
1601     5    | ID4   |  16
1602     6    | ID5   |  32
1603     7    | ID6   |  64
1604     8    | ID7   | 128
1605
1606Some Examples::
1607
1608    Switch         | Hex     | Decimal
1609   8 7 6 5 4 3 2 1 | Node ID | Node ID
1610   ----------------|---------|---------
1611   0 0 0 0 0 0 0 0 |    not allowed
1612   0 0 0 0 0 0 0 1 |    1    |    1
1613   0 0 0 0 0 0 1 0 |    2    |    2
1614   0 0 0 0 0 0 1 1 |    3    |    3
1615       . . .       |         |
1616   0 1 0 1 0 1 0 1 |   55    |   85
1617       . . .       |         |
1618   1 0 1 0 1 0 1 0 |   AA    |  170
1619       . . .       |         |
1620   1 1 1 1 1 1 0 1 |   FD    |  253
1621   1 1 1 1 1 1 1 0 |   FE    |  254
1622   1 1 1 1 1 1 1 1 |   FF    |  255
1623
1624
1625Setting the I/O Base Address
1626^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1627
1628The first six switches in switch block SW1 are used to select the I/O Base
1629address using the following table::
1630
1631	     Switch        | Hex I/O
1632    1   2   3   4   5   6  | Address
1633   ------------------------|--------
1634   OFF ON  ON  OFF OFF ON  |  260
1635   OFF ON  OFF ON  ON  OFF |  290
1636   OFF ON  OFF OFF OFF ON  |  2E0  (Manufacturer's default)
1637   OFF ON  OFF OFF OFF OFF |  2F0
1638   OFF OFF ON  ON  ON  ON  |  300
1639   OFF OFF ON  OFF ON  OFF |  350
1640   OFF OFF OFF ON  ON  ON  |  380
1641   OFF OFF OFF OFF OFF ON  |  3E0
1642
1643Note: Other IO-Base addresses seem to be selectable, but only the above
1644      combinations are documented.
1645
1646
1647Setting the Base Memory (RAM) buffer Address
1648^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1649
1650The switches 7-10 of switch block SW1 are used to select the Memory
1651Base address of the RAM (2K) and the PROM::
1652
1653   Switch          | Hex RAM | Hex ROM
1654    7   8   9  10  | Address | Address
1655   ----------------|---------|-----------
1656   OFF OFF ON  ON  |  C0000  |  C8000
1657   OFF OFF ON  OFF |  D0000  |  D8000 (Default)
1658   OFF OFF OFF ON  |  E0000  |  E8000
1659
1660.. note::
1661
1662      Other MEM-Base addresses seem to be selectable, but only the above
1663      combinations are documented.
1664
1665
1666Setting the Interrupt Line
1667^^^^^^^^^^^^^^^^^^^^^^^^^^
1668
1669To select a hardware interrupt level install one (only one!) of the jumpers
1670JP3 through JP13 using the following table::
1671
1672   Jumper | IRQ
1673   -------|-----------------
1674     3    |  14
1675     4    |  15
1676     5    |  12
1677     6    |  11
1678     7    |  10
1679     8    |   3
1680     9    |   4
1681    10    |   5
1682    11    |   6
1683    12    |   7
1684    13    |   2 (=9) Default!
1685
1686.. note::
1687
1688       - Do not use JP11=IRQ6, it may conflict with your Floppy Disk
1689	 Controller
1690       - Use JP3=IRQ14 only, if you don't have an IDE-, MFM-, or RLL-
1691	 Hard Disk, it may conflict with their controllers
1692
1693
1694Setting the Timeout Parameters
1695------------------------------
1696
1697The jumpers labeled JP1 and JP2 are used to determine the timeout
1698parameters. These two jumpers are normally left open.
1699
1700
1701Lantech
1702=======
1703
17048-bit card, unknown model
1705-------------------------
1706  - from Vlad Lungu <vlungu@ugal.ro> - his e-mail address seemed broken at
1707    the time I tried to reach him.  Sorry Vlad, if you didn't get my reply.
1708
1709::
1710
1711   ________________________________________________________________
1712   |   1         8                                                 |
1713   |   ___________                                               __|
1714   |   |   SW1    |                                         LED |__|
1715   |   |__________|                                                |
1716   |                                                            ___|
1717   |                _____________________                       |S | 8
1718   |                |                   |                       |W |
1719   |                |                   |                       |2 |
1720   |                |                   |                       |__| 1
1721   |                |      UM9065L      |     |o|  JP4         ____|____
1722   |                |                   |     |o|              |  CN    |
1723   |                |                   |                      |________|
1724   |                |                   |                          |
1725   |                |___________________|                          |
1726   |                                                               |
1727   |                                                               |
1728   |      _____________                                            |
1729   |      |            |                                           |
1730   |      |    PROM    |        |ooooo|  JP6                       |
1731   |      |____________|        |ooooo|                            |
1732   |_____________                                             _   _|
1733		|____________________________________________| |__|
1734
1735
1736UM9065L : ARCnet Controller
1737
1738SW 1    : Shared Memory Address and I/O Base
1739
1740::
1741
1742	ON=0
1743
1744	12345|Memory Address
1745	-----|--------------
1746	00001|  D4000
1747	00010|  CC000
1748	00110|  D0000
1749	01110|  D1000
1750	01101|  D9000
1751	10010|  CC800
1752	10011|  DC800
1753	11110|  D1800
1754
1755It seems that the bits are considered in reverse order.  Also, you must
1756observe that some of those addresses are unusual and I didn't probe them; I
1757used a memory dump in DOS to identify them.  For the 00000 configuration and
1758some others that I didn't write here the card seems to conflict with the
1759video card (an S3 GENDAC). I leave the full decoding of those addresses to
1760you.
1761
1762::
1763
1764	678| I/O Address
1765	---|------------
1766	000|    260
1767	001|    failed probe
1768	010|    2E0
1769	011|    380
1770	100|    290
1771	101|    350
1772	110|    failed probe
1773	111|    3E0
1774
1775  SW 2  : Node ID (binary coded)
1776
1777  JP 4  : Boot PROM enable   CLOSE - enabled
1778			     OPEN  - disabled
1779
1780  JP 6  : IRQ set (ONLY ONE jumper on 1-5 for IRQ 2-6)
1781
1782
1783Acer
1784====
1785
17868-bit card, Model 5210-003
1787--------------------------
1788
1789  - from Vojtech Pavlik <vojtech@suse.cz> using portions of the existing
1790    arcnet-hardware file.
1791
1792This is a 90C26 based card.  Its configuration seems similar to the SMC
1793PC100, but has some additional jumpers I don't know the meaning of.
1794
1795::
1796
1797	       __
1798	      |  |
1799   ___________|__|_________________________
1800  |         |      |                       |
1801  |         | BNC  |                       |
1802  |         |______|                    ___|
1803  |  _____________________             |___
1804  | |                     |                |
1805  | | Hybrid IC           |                |
1806  | |                     |       o|o J1   |
1807  | |_____________________|       8|8      |
1808  |                               8|8 J5   |
1809  |                               o|o      |
1810  |                               8|8      |
1811  |__                             8|8      |
1812 (|__| LED                        o|o      |
1813  |                               8|8      |
1814  |                               8|8 J15  |
1815  |                                        |
1816  |                    _____               |
1817  |                   |     |   _____      |
1818  |                   |     |  |     |  ___|
1819  |                   |     |  |     | |
1820  |  _____            | ROM |  | UFS | |
1821  | |     |           |     |  |     | |
1822  | |     |     ___   |     |  |     | |
1823  | |     |    |   |  |__.__|  |__.__| |
1824  | | NCR |    |XTL|   _____    _____  |
1825  | |     |    |___|  |     |  |     | |
1826  | |90C26|           |     |  |     | |
1827  | |     |           | RAM |  | UFS | |
1828  | |     | J17 o|o   |     |  |     | |
1829  | |     | J16 o|o   |     |  |     | |
1830  | |__.__|           |__.__|  |__.__| |
1831  |  ___                               |
1832  | |   |8                             |
1833  | |SW2|                              |
1834  | |   |                              |
1835  | |___|1                             |
1836  |  ___                               |
1837  | |   |10           J18 o|o          |
1838  | |   |                 o|o          |
1839  | |SW1|                 o|o          |
1840  | |   |             J21 o|o          |
1841  | |___|1                             |
1842  |                                    |
1843  |____________________________________|
1844
1845
1846Legend::
1847
1848  90C26       ARCNET Chip
1849  XTL         20 MHz Crystal
1850  SW1 1-6     Base I/O Address Select
1851      7-10    Memory Address Select
1852  SW2 1-8     Node ID Select (ID0-ID7)
1853  J1-J5       IRQ Select
1854  J6-J21      Unknown (Probably extra timeouts & ROM enable ...)
1855  LED1        Activity LED
1856  BNC         Coax connector (STAR ARCnet)
1857  RAM         2k of SRAM
1858  ROM         Boot ROM socket
1859  UFS         Unidentified Flying Sockets
1860
1861
1862Setting the Node ID
1863^^^^^^^^^^^^^^^^^^^
1864
1865The eight switches in SW2 are used to set the node ID. Each node attached
1866to the network must have an unique node ID which must not be 0.
1867Switch 1 (ID0) serves as the least significant bit (LSB).
1868
1869Setting one of the switches to OFF means "1", ON means "0".
1870
1871The node ID is the sum of the values of all switches set to "1"
1872These values are::
1873
1874   Switch | Value
1875   -------|-------
1876     1    |   1
1877     2    |   2
1878     3    |   4
1879     4    |   8
1880     5    |  16
1881     6    |  32
1882     7    |  64
1883     8    | 128
1884
1885Don't set this to 0 or 255; these values are reserved.
1886
1887
1888Setting the I/O Base Address
1889^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1890
1891The switches 1 to 6 of switch block SW1 are used to select one
1892of 32 possible I/O Base addresses using the following tables::
1893
1894	  | Hex
1895   Switch | Value
1896   -------|-------
1897     1    | 200
1898     2    | 100
1899     3    |  80
1900     4    |  40
1901     5    |  20
1902     6    |  10
1903
1904The I/O address is sum of all switches set to "1". Remember that
1905the I/O address space below 0x200 is RESERVED for mainboard, so
1906switch 1 should be ALWAYS SET TO OFF.
1907
1908
1909Setting the Base Memory (RAM) buffer Address
1910^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
1911
1912The memory buffer (RAM) requires 2K. The base of this buffer can be
1913located in any of sixteen positions. However, the addresses below
1914A0000 are likely to cause system hang because there's main RAM.
1915
1916Jumpers 7-10 of switch block SW1 select the Memory Base address::
1917
1918   Switch          | Hex RAM
1919    7   8   9  10  | Address
1920   ----------------|---------
1921   OFF OFF OFF OFF |  F0000 (conflicts with main BIOS)
1922   OFF OFF OFF ON  |  E0000
1923   OFF OFF ON  OFF |  D0000
1924   OFF OFF ON  ON  |  C0000 (conflicts with video BIOS)
1925   OFF ON  OFF OFF |  B0000 (conflicts with mono video)
1926   OFF ON  OFF ON  |  A0000 (conflicts with graphics)
1927
1928
1929Setting the Interrupt Line
1930^^^^^^^^^^^^^^^^^^^^^^^^^^
1931
1932Jumpers 1-5 of the jumper block J1 control the IRQ level. ON means
1933shorted, OFF means open::
1934
1935    Jumper              |  IRQ
1936    1   2   3   4   5   |
1937   ----------------------------
1938    ON  OFF OFF OFF OFF |  7
1939    OFF ON  OFF OFF OFF |  5
1940    OFF OFF ON  OFF OFF |  4
1941    OFF OFF OFF ON  OFF |  3
1942    OFF OFF OFF OFF ON  |  2
1943
1944
1945Unknown jumpers & sockets
1946^^^^^^^^^^^^^^^^^^^^^^^^^
1947
1948I know nothing about these. I just guess that J16&J17 are timeout
1949jumpers and maybe one of J18-J21 selects ROM. Also J6-J10 and
1950J11-J15 are connecting IRQ2-7 to some pins on the UFSs. I can't
1951guess the purpose.
1952
1953Datapoint?
1954==========
1955
1956LAN-ARC-8, an 8-bit card
1957------------------------
1958
1959  - from Vojtech Pavlik <vojtech@suse.cz>
1960
1961This is another SMC 90C65-based ARCnet card. I couldn't identify the
1962manufacturer, but it might be DataPoint, because the card has the
1963original arcNet logo in its upper right corner.
1964
1965::
1966
1967	  _______________________________________________________
1968	 |                         _________                     |
1969	 |                        |   SW2   | ON      arcNet     |
1970	 |                        |_________| OFF             ___|
1971	 |  _____________         1 ______  8                |   | 8
1972	 | |             | SW1     | XTAL | ____________     | S |
1973	 | > RAM (2k)    |         |______||            |    | W |
1974	 | |_____________|                 |      H     |    | 3 |
1975	 |                        _________|_____ y     |    |___| 1
1976	 |  _________            |         |     |b     |        |
1977	 | |_________|           |         |     |r     |        |
1978	 |                       |     SMC |     |i     |        |
1979	 |                       |    90C65|     |d     |        |
1980	 |  _________            |         |     |      |        |
1981	 | |   SW1   | ON        |         |     |I     |        |
1982	 | |_________| OFF       |_________|_____/C     |   _____|
1983	 |  1       8                      |            |  |     |___
1984	 |  ______________                 |            |  | BNC |___|
1985	 | |              |                |____________|  |_____|
1986	 | > EPROM SOCKET |              _____________           |
1987	 | |______________|             |_____________|          |
1988	 |                                         ______________|
1989	 |                                        |
1990	 |________________________________________|
1991
1992Legend::
1993
1994  90C65       ARCNET Chip
1995  SW1 1-5:    Base Memory Address Select
1996      6-8:    Base I/O Address Select
1997  SW2 1-8:    Node ID Select
1998  SW3 1-5:    IRQ Select
1999      6-7:    Extra Timeout
2000      8  :    ROM Enable
2001  BNC         Coax connector
2002  XTAL        20 MHz Crystal
2003
2004
2005Setting the Node ID
2006^^^^^^^^^^^^^^^^^^^
2007
2008The eight switches in SW3 are used to set the node ID. Each node attached
2009to the network must have an unique node ID which must not be 0.
2010Switch 1 serves as the least significant bit (LSB).
2011
2012Setting one of the switches to Off means "1", On means "0".
2013
2014The node ID is the sum of the values of all switches set to "1"
2015These values are::
2016
2017   Switch | Value
2018   -------|-------
2019     1    |   1
2020     2    |   2
2021     3    |   4
2022     4    |   8
2023     5    |  16
2024     6    |  32
2025     7    |  64
2026     8    | 128
2027
2028
2029Setting the I/O Base Address
2030^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2031
2032The last three switches in switch block SW1 are used to select one
2033of eight possible I/O Base addresses using the following table::
2034
2035
2036   Switch      | Hex I/O
2037    6   7   8  | Address
2038   ------------|--------
2039   ON  ON  ON  |  260
2040   OFF ON  ON  |  290
2041   ON  OFF ON  |  2E0  (Manufacturer's default)
2042   OFF OFF ON  |  2F0
2043   ON  ON  OFF |  300
2044   OFF ON  OFF |  350
2045   ON  OFF OFF |  380
2046   OFF OFF OFF |  3E0
2047
2048
2049Setting the Base Memory (RAM) buffer Address
2050^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2051
2052The memory buffer (RAM) requires 2K. The base of this buffer can be
2053located in any of eight positions. The address of the Boot Prom is
2054memory base + 0x2000.
2055
2056Jumpers 3-5 of switch block SW1 select the Memory Base address.
2057
2058::
2059
2060   Switch              | Hex RAM | Hex ROM
2061    1   2   3   4   5  | Address | Address *)
2062   --------------------|---------|-----------
2063   ON  ON  ON  ON  ON  |  C0000  |  C2000
2064   ON  ON  OFF ON  ON  |  C4000  |  C6000
2065   ON  ON  ON  OFF ON  |  CC000  |  CE000
2066   ON  ON  OFF OFF ON  |  D0000  |  D2000  (Manufacturer's default)
2067   ON  ON  ON  ON  OFF |  D4000  |  D6000
2068   ON  ON  OFF ON  OFF |  D8000  |  DA000
2069   ON  ON  ON  OFF OFF |  DC000  |  DE000
2070   ON  ON  OFF OFF OFF |  E0000  |  E2000
2071
2072  *) To enable the Boot ROM set the switch 8 of switch block SW3 to position ON.
2073
2074The switches 1 and 2 probably add 0x0800 and 0x1000 to RAM base address.
2075
2076
2077Setting the Interrupt Line
2078^^^^^^^^^^^^^^^^^^^^^^^^^^
2079
2080Switches 1-5 of the switch block SW3 control the IRQ level::
2081
2082    Jumper              |  IRQ
2083    1   2   3   4   5   |
2084   ----------------------------
2085    ON  OFF OFF OFF OFF |  3
2086    OFF ON  OFF OFF OFF |  4
2087    OFF OFF ON  OFF OFF |  5
2088    OFF OFF OFF ON  OFF |  7
2089    OFF OFF OFF OFF ON  |  2
2090
2091
2092Setting the Timeout Parameters
2093^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2094
2095The switches 6-7 of the switch block SW3 are used to determine the timeout
2096parameters.  These two switches are normally left in the OFF position.
2097
2098
2099Topware
2100=======
2101
21028-bit card, TA-ARC/10
2103---------------------
2104
2105  - from Vojtech Pavlik <vojtech@suse.cz>
2106
2107This is another very similar 90C65 card. Most of the switches and jumpers
2108are the same as on other clones.
2109
2110::
2111
2112   _____________________________________________________________________
2113  |  ___________   |                         |            ______        |
2114  | |SW2 NODE ID|  |                         |           | XTAL |       |
2115  | |___________|  |  Hybrid IC              |           |______|       |
2116  |  ___________   |                         |                        __|
2117  | |SW1 MEM+I/O|  |_________________________|                   LED1|__|)
2118  | |___________|           1 2                                         |
2119  |                     J3 |o|o| TIMEOUT                          ______|
2120  |     ______________     |o|o|                                 |      |
2121  |    |              |  ___________________                     | RJ   |
2122  |    > EPROM SOCKET | |                   \                    |------|
2123  |J2  |______________| |                    |                   |      |
2124  ||o|                  |                    |                   |______|
2125  ||o| ROM ENABLE       |        SMC         |    _________             |
2126  |     _____________   |       90C65        |   |_________|       _____|
2127  |    |             |  |                    |                    |     |___
2128  |    > RAM (2k)    |  |                    |                    | BNC |___|
2129  |    |_____________|  |                    |                    |_____|
2130  |                     |____________________|                          |
2131  | ________ IRQ 2 3 4 5 7                  ___________                 |
2132  ||________|   |o|o|o|o|o|                |___________|                |
2133  |________   J1|o|o|o|o|o|                               ______________|
2134	   |                                             |
2135	   |_____________________________________________|
2136
2137Legend::
2138
2139  90C65       ARCNET Chip
2140  XTAL        20 MHz Crystal
2141  SW1 1-5     Base Memory Address Select
2142      6-8     Base I/O Address Select
2143  SW2 1-8     Node ID Select (ID0-ID7)
2144  J1          IRQ Select
2145  J2          ROM Enable
2146  J3          Extra Timeout
2147  LED1        Activity LED
2148  BNC         Coax connector (BUS ARCnet)
2149  RJ          Twisted Pair Connector (daisy chain)
2150
2151
2152Setting the Node ID
2153^^^^^^^^^^^^^^^^^^^
2154
2155The eight switches in SW2 are used to set the node ID. Each node attached to
2156the network must have an unique node ID which must not be 0.  Switch 1 (ID0)
2157serves as the least significant bit (LSB).
2158
2159Setting one of the switches to Off means "1", On means "0".
2160
2161The node ID is the sum of the values of all switches set to "1"
2162These values are::
2163
2164   Switch | Label | Value
2165   -------|-------|-------
2166     1    | ID0   |   1
2167     2    | ID1   |   2
2168     3    | ID2   |   4
2169     4    | ID3   |   8
2170     5    | ID4   |  16
2171     6    | ID5   |  32
2172     7    | ID6   |  64
2173     8    | ID7   | 128
2174
2175Setting the I/O Base Address
2176^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2177
2178The last three switches in switch block SW1 are used to select one
2179of eight possible I/O Base addresses using the following table::
2180
2181
2182   Switch      | Hex I/O
2183    6   7   8  | Address
2184   ------------|--------
2185   ON  ON  ON  |  260  (Manufacturer's default)
2186   OFF ON  ON  |  290
2187   ON  OFF ON  |  2E0
2188   OFF OFF ON  |  2F0
2189   ON  ON  OFF |  300
2190   OFF ON  OFF |  350
2191   ON  OFF OFF |  380
2192   OFF OFF OFF |  3E0
2193
2194
2195Setting the Base Memory (RAM) buffer Address
2196^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2197
2198The memory buffer (RAM) requires 2K. The base of this buffer can be
2199located in any of eight positions. The address of the Boot Prom is
2200memory base + 0x2000.
2201
2202Jumpers 3-5 of switch block SW1 select the Memory Base address.
2203
2204::
2205
2206   Switch              | Hex RAM | Hex ROM
2207    1   2   3   4   5  | Address | Address *)
2208   --------------------|---------|-----------
2209   ON  ON  ON  ON  ON  |  C0000  |  C2000
2210   ON  ON  OFF ON  ON  |  C4000  |  C6000  (Manufacturer's default)
2211   ON  ON  ON  OFF ON  |  CC000  |  CE000
2212   ON  ON  OFF OFF ON  |  D0000  |  D2000
2213   ON  ON  ON  ON  OFF |  D4000  |  D6000
2214   ON  ON  OFF ON  OFF |  D8000  |  DA000
2215   ON  ON  ON  OFF OFF |  DC000  |  DE000
2216   ON  ON  OFF OFF OFF |  E0000  |  E2000
2217
2218   *) To enable the Boot ROM short the jumper J2.
2219
2220The jumpers 1 and 2 probably add 0x0800 and 0x1000 to RAM address.
2221
2222
2223Setting the Interrupt Line
2224^^^^^^^^^^^^^^^^^^^^^^^^^^
2225
2226Jumpers 1-5 of the jumper block J1 control the IRQ level.  ON means
2227shorted, OFF means open::
2228
2229    Jumper              |  IRQ
2230    1   2   3   4   5   |
2231   ----------------------------
2232    ON  OFF OFF OFF OFF |  2
2233    OFF ON  OFF OFF OFF |  3
2234    OFF OFF ON  OFF OFF |  4
2235    OFF OFF OFF ON  OFF |  5
2236    OFF OFF OFF OFF ON  |  7
2237
2238
2239Setting the Timeout Parameters
2240^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2241
2242The jumpers J3 are used to set the timeout parameters. These two
2243jumpers are normally left open.
2244
2245Thomas-Conrad
2246=============
2247
2248Model #500-6242-0097 REV A (8-bit card)
2249---------------------------------------
2250
2251  - from Lars Karlsson <100617.3473@compuserve.com>
2252
2253::
2254
2255     ________________________________________________________
2256   |          ________   ________                           |_____
2257   |         |........| |........|                            |
2258   |         |________| |________|                         ___|
2259   |            SW 3       SW 1                           |   |
2260   |         Base I/O   Base Addr.                Station |   |
2261   |                                              address |   |
2262   |    ______                                    switch  |   |
2263   |   |      |                                           |   |
2264   |   |      |                                           |___|
2265   |   |      |                                 ______        |___._
2266   |   |______|                                |______|         ____| BNC
2267   |                                            Jumper-        _____| Connector
2268   |   Main chip                                block  _    __|   '
2269   |                                                  | |  |    RJ Connector
2270   |                                                  |_|  |    with 110 Ohm
2271   |                                                       |__  Terminator
2272   |    ___________                                         __|
2273   |   |...........|                                       |    RJ-jack
2274   |   |...........|    _____                              |    (unused)
2275   |   |___________|   |_____|                             |__
2276   |  Boot PROM socket IRQ-jumpers                            |_  Diagnostic
2277   |________                                       __          _| LED (red)
2278	    | | | | | | | | | | | | | | | | | | | |  |        |
2279	    | | | | | | | | | | | | | | | | | | | |  |________|
2280							      |
2281							      |
2282
2283And here are the settings for some of the switches and jumpers on the cards.
2284
2285::
2286
2287	    I/O
2288
2289	   1 2 3 4 5 6 7 8
2290
2291  2E0----- 0 0 0 1 0 0 0 1
2292  2F0----- 0 0 0 1 0 0 0 0
2293  300----- 0 0 0 0 1 1 1 1
2294  350----- 0 0 0 0 1 1 1 0
2295
2296"0" in the above example means switch is off "1" means that it is on.
2297
2298::
2299
2300      ShMem address.
2301
2302	1 2 3 4 5 6 7 8
2303
2304  CX00--0 0 1 1 | |   |
2305  DX00--0 0 1 0       |
2306  X000--------- 1 1   |
2307  X400--------- 1 0   |
2308  X800--------- 0 1   |
2309  XC00--------- 0 0
2310  ENHANCED----------- 1
2311  COMPATIBLE--------- 0
2312
2313::
2314
2315	 IRQ
2316
2317
2318     3 4 5 7 2
2319     . . . . .
2320     . . . . .
2321
2322
2323There is a DIP-switch with 8 switches, used to set the shared memory address
2324to be used. The first 6 switches set the address, the 7th doesn't have any
2325function, and the 8th switch is used to select "compatible" or "enhanced".
2326When I got my two cards, one of them had this switch set to "enhanced". That
2327card didn't work at all, it wasn't even recognized by the driver. The other
2328card had this switch set to "compatible" and it behaved absolutely normally. I
2329guess that the switch on one of the cards, must have been changed accidentally
2330when the card was taken out of its former host. The question remains
2331unanswered, what is the purpose of the "enhanced" position?
2332
2333[Avery's note: "enhanced" probably either disables shared memory (use IO
2334ports instead) or disables IO ports (use memory addresses instead).  This
2335varies by the type of card involved.  I fail to see how either of these
2336enhance anything.  Send me more detailed information about this mode, or
2337just use "compatible" mode instead.]
2338
2339Waterloo Microsystems Inc. ??
2340=============================
2341
23428-bit card (C) 1985
2343-------------------
2344  - from Robert Michael Best <rmb117@cs.usask.ca>
2345
2346[Avery's note: these don't work with my driver for some reason.  These cards
2347SEEM to have settings similar to the PDI508Plus, which is
2348software-configured and doesn't work with my driver either.  The "Waterloo
2349chip" is a boot PROM, probably designed specifically for the University of
2350Waterloo.  If you have any further information about this card, please
2351e-mail me.]
2352
2353The probe has not been able to detect the card on any of the J2 settings,
2354and I tried them again with the "Waterloo" chip removed.
2355
2356::
2357
2358   _____________________________________________________________________
2359  | \/  \/              ___  __ __                                      |
2360  | C4  C4     |^|     | M ||  ^  ||^|                                  |
2361  | --  --     |_|     | 5 ||     || | C3                               |
2362  | \/  \/      C10    |___||     ||_|                                  |
2363  | C4  C4             _  _ |     |                 ??                  |
2364  | --  --            | \/ ||     |                                     |
2365  |                   |    ||     |                                     |
2366  |                   |    ||  C1 |                                     |
2367  |                   |    ||     |  \/                            _____|
2368  |                   | C6 ||     |  C9                           |     |___
2369  |                   |    ||     |  --                           | BNC |___|
2370  |                   |    ||     |          >C7|                 |_____|
2371  |                   |    ||     |                                     |
2372  | __ __             |____||_____|       1 2 3     6                   |
2373  ||  ^  |     >C4|                      |o|o|o|o|o|o| J2    >C4|       |
2374  ||     |                               |o|o|o|o|o|o|                  |
2375  || C2  |     >C4|                                          >C4|       |
2376  ||     |                                   >C8|                       |
2377  ||     |       2 3 4 5 6 7  IRQ                            >C4|       |
2378  ||_____|      |o|o|o|o|o|o| J3                                        |
2379  |_______      |o|o|o|o|o|o|                            _______________|
2380	  |                                             |
2381	  |_____________________________________________|
2382
2383  C1 -- "COM9026
2384	 SMC 8638"
2385	In a chip socket.
2386
2387  C2 -- "@Copyright
2388	 Waterloo Microsystems Inc.
2389	 1985"
2390	In a chip Socket with info printed on a label covering a round window
2391	showing the circuit inside. (The window indicates it is an EPROM chip.)
2392
2393  C3 -- "COM9032
2394	 SMC 8643"
2395	In a chip socket.
2396
2397  C4 -- "74LS"
2398	9 total no sockets.
2399
2400  M5 -- "50006-136
2401	 20.000000 MHZ
2402	 MTQ-T1-S3
2403	 0 M-TRON 86-40"
2404	Metallic case with 4 pins, no socket.
2405
2406  C6 -- "MOSTEK@TC8643
2407	 MK6116N-20
2408	 MALAYSIA"
2409	No socket.
2410
2411  C7 -- No stamp or label but in a 20 pin chip socket.
2412
2413  C8 -- "PAL10L8CN
2414	 8623"
2415	In a 20 pin socket.
2416
2417  C9 -- "PAl16R4A-2CN
2418	 8641"
2419	In a 20 pin socket.
2420
2421  C10 -- "M8640
2422	    NMC
2423	  9306N"
2424	 In an 8 pin socket.
2425
2426  ?? -- Some components on a smaller board and attached with 20 pins all
2427	along the side closest to the BNC connector.  The are coated in a dark
2428	resin.
2429
2430On the board there are two jumper banks labeled J2 and J3. The
2431manufacturer didn't put a J1 on the board. The two boards I have both
2432came with a jumper box for each bank.
2433
2434::
2435
2436  J2 -- Numbered 1 2 3 4 5 6.
2437	4 and 5 are not stamped due to solder points.
2438
2439  J3 -- IRQ 2 3 4 5 6 7
2440
2441The board itself has a maple leaf stamped just above the irq jumpers
2442and "-2 46-86" beside C2. Between C1 and C6 "ASS 'Y 300163" and "@1986
2443CORMAN CUSTOM ELECTRONICS CORP." stamped just below the BNC connector.
2444Below that "MADE IN CANADA"
2445
2446No Name
2447=======
2448
24498-bit cards, 16-bit cards
2450-------------------------
2451
2452  - from Juergen Seifert <seifert@htwm.de>
2453
2454I have named this ARCnet card "NONAME", since there is no name of any
2455manufacturer on the Installation manual nor on the shipping box. The only
2456hint to the existence of a manufacturer at all is written in copper,
2457it is "Made in Taiwan"
2458
2459This description has been written by Juergen Seifert <seifert@htwm.de>
2460using information from the Original
2461
2462		    "ARCnet Installation Manual"
2463
2464::
2465
2466    ________________________________________________________________
2467   | |STAR| BUS| T/P|                                               |
2468   | |____|____|____|                                               |
2469   |                            _____________________               |
2470   |                           |                     |              |
2471   |                           |                     |              |
2472   |                           |                     |              |
2473   |                           |        SMC          |              |
2474   |                           |                     |              |
2475   |                           |       COM90C65      |              |
2476   |                           |                     |              |
2477   |                           |                     |              |
2478   |                           |__________-__________|              |
2479   |                                                           _____|
2480   |      _______________                                     |  CN |
2481   |     | PROM          |                                    |_____|
2482   |     > SOCKET        |                                          |
2483   |     |_______________|         1 2 3 4 5 6 7 8  1 2 3 4 5 6 7 8 |
2484   |                               _______________  _______________ |
2485   |           |o|o|o|o|o|o|o|o|  |      SW1      ||      SW2      ||
2486   |           |o|o|o|o|o|o|o|o|  |_______________||_______________||
2487   |___         2 3 4 5 7 E E R        Node ID       IOB__|__MEM____|
2488       |        \ IRQ   / T T O                      |
2489       |__________________1_2_M______________________|
2490
2491Legend::
2492
2493  COM90C65:       ARCnet Probe
2494  S1  1-8:    Node ID Select
2495  S2  1-3:    I/O Base Address Select
2496      4-6:    Memory Base Address Select
2497      7-8:    RAM Offset Select
2498  ET1, ET2    Extended Timeout Select
2499  ROM     ROM Enable Select
2500  CN              RG62 Coax Connector
2501  STAR| BUS | T/P Three fields for placing a sign (colored circle)
2502		  indicating the topology of the card
2503
2504Setting one of the switches to Off means "1", On means "0".
2505
2506
2507Setting the Node ID
2508^^^^^^^^^^^^^^^^^^^
2509
2510The eight switches in group SW1 are used to set the node ID.
2511Each node attached to the network must have an unique node ID which
2512must be different from 0.
2513Switch 8 serves as the least significant bit (LSB).
2514
2515The node ID is the sum of the values of all switches set to "1"
2516These values are::
2517
2518    Switch | Value
2519    -------|-------
2520      8    |   1
2521      7    |   2
2522      6    |   4
2523      5    |   8
2524      4    |  16
2525      3    |  32
2526      2    |  64
2527      1    | 128
2528
2529Some Examples::
2530
2531    Switch         | Hex     | Decimal
2532   1 2 3 4 5 6 7 8 | Node ID | Node ID
2533   ----------------|---------|---------
2534   0 0 0 0 0 0 0 0 |    not allowed
2535   0 0 0 0 0 0 0 1 |    1    |    1
2536   0 0 0 0 0 0 1 0 |    2    |    2
2537   0 0 0 0 0 0 1 1 |    3    |    3
2538       . . .       |         |
2539   0 1 0 1 0 1 0 1 |   55    |   85
2540       . . .       |         |
2541   1 0 1 0 1 0 1 0 |   AA    |  170
2542       . . .       |         |
2543   1 1 1 1 1 1 0 1 |   FD    |  253
2544   1 1 1 1 1 1 1 0 |   FE    |  254
2545   1 1 1 1 1 1 1 1 |   FF    |  255
2546
2547
2548Setting the I/O Base Address
2549^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2550
2551The first three switches in switch group SW2 are used to select one
2552of eight possible I/O Base addresses using the following table::
2553
2554   Switch      | Hex I/O
2555    1   2   3  | Address
2556   ------------|--------
2557   ON  ON  ON  |  260
2558   ON  ON  OFF |  290
2559   ON  OFF ON  |  2E0  (Manufacturer's default)
2560   ON  OFF OFF |  2F0
2561   OFF ON  ON  |  300
2562   OFF ON  OFF |  350
2563   OFF OFF ON  |  380
2564   OFF OFF OFF |  3E0
2565
2566
2567Setting the Base Memory (RAM) buffer Address
2568^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2569
2570The memory buffer requires 2K of a 16K block of RAM. The base of this
257116K block can be located in any of eight positions.
2572Switches 4-6 of switch group SW2 select the Base of the 16K block.
2573Within that 16K address space, the buffer may be assigned any one of four
2574positions, determined by the offset, switches 7 and 8 of group SW2.
2575
2576::
2577
2578   Switch     | Hex RAM | Hex ROM
2579   4 5 6  7 8 | Address | Address *)
2580   -----------|---------|-----------
2581   0 0 0  0 0 |  C0000  |  C2000
2582   0 0 0  0 1 |  C0800  |  C2000
2583   0 0 0  1 0 |  C1000  |  C2000
2584   0 0 0  1 1 |  C1800  |  C2000
2585	      |         |
2586   0 0 1  0 0 |  C4000  |  C6000
2587   0 0 1  0 1 |  C4800  |  C6000
2588   0 0 1  1 0 |  C5000  |  C6000
2589   0 0 1  1 1 |  C5800  |  C6000
2590	      |         |
2591   0 1 0  0 0 |  CC000  |  CE000
2592   0 1 0  0 1 |  CC800  |  CE000
2593   0 1 0  1 0 |  CD000  |  CE000
2594   0 1 0  1 1 |  CD800  |  CE000
2595	      |         |
2596   0 1 1  0 0 |  D0000  |  D2000  (Manufacturer's default)
2597   0 1 1  0 1 |  D0800  |  D2000
2598   0 1 1  1 0 |  D1000  |  D2000
2599   0 1 1  1 1 |  D1800  |  D2000
2600	      |         |
2601   1 0 0  0 0 |  D4000  |  D6000
2602   1 0 0  0 1 |  D4800  |  D6000
2603   1 0 0  1 0 |  D5000  |  D6000
2604   1 0 0  1 1 |  D5800  |  D6000
2605	      |         |
2606   1 0 1  0 0 |  D8000  |  DA000
2607   1 0 1  0 1 |  D8800  |  DA000
2608   1 0 1  1 0 |  D9000  |  DA000
2609   1 0 1  1 1 |  D9800  |  DA000
2610	      |         |
2611   1 1 0  0 0 |  DC000  |  DE000
2612   1 1 0  0 1 |  DC800  |  DE000
2613   1 1 0  1 0 |  DD000  |  DE000
2614   1 1 0  1 1 |  DD800  |  DE000
2615	      |         |
2616   1 1 1  0 0 |  E0000  |  E2000
2617   1 1 1  0 1 |  E0800  |  E2000
2618   1 1 1  1 0 |  E1000  |  E2000
2619   1 1 1  1 1 |  E1800  |  E2000
2620
2621   *) To enable the 8K Boot PROM install the jumper ROM.
2622      The default is jumper ROM not installed.
2623
2624
2625Setting Interrupt Request Lines (IRQ)
2626^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2627
2628To select a hardware interrupt level set one (only one!) of the jumpers
2629IRQ2, IRQ3, IRQ4, IRQ5 or IRQ7. The manufacturer's default is IRQ2.
2630
2631
2632Setting the Timeouts
2633^^^^^^^^^^^^^^^^^^^^
2634
2635The two jumpers labeled ET1 and ET2 are used to determine the timeout
2636parameters (response and reconfiguration time). Every node in a network
2637must be set to the same timeout values.
2638
2639::
2640
2641   ET1 ET2 | Response Time (us) | Reconfiguration Time (ms)
2642   --------|--------------------|--------------------------
2643   Off Off |        78          |          840   (Default)
2644   Off On  |       285          |         1680
2645   On  Off |       563          |         1680
2646   On  On  |      1130          |         1680
2647
2648On means jumper installed, Off means jumper not installed
2649
2650
265116-BIT ARCNET
2652-------------
2653
2654The manual of my 8-Bit NONAME ARCnet Card contains another description
2655of a 16-Bit Coax / Twisted Pair Card. This description is incomplete,
2656because there are missing two pages in the manual booklet. (The table
2657of contents reports pages ... 2-9, 2-11, 2-12, 3-1, ... but inside
2658the booklet there is a different way of counting ... 2-9, 2-10, A-1,
2659(empty page), 3-1, ..., 3-18, A-1 (again), A-2)
2660Also the picture of the board layout is not as good as the picture of
26618-Bit card, because there isn't any letter like "SW1" written to the
2662picture.
2663
2664Should somebody have such a board, please feel free to complete this
2665description or to send a mail to me!
2666
2667This description has been written by Juergen Seifert <seifert@htwm.de>
2668using information from the Original
2669
2670		    "ARCnet Installation Manual"
2671
2672::
2673
2674   ___________________________________________________________________
2675  <                    _________________  _________________           |
2676  >                   |       SW?       ||      SW?        |          |
2677  <                   |_________________||_________________|          |
2678  >                       ____________________                        |
2679  <                      |                    |                       |
2680  >                      |                    |                       |
2681  <                      |                    |                       |
2682  >                      |                    |                       |
2683  <                      |                    |                       |
2684  >                      |                    |                       |
2685  <                      |                    |                       |
2686  >                      |____________________|                       |
2687  <                                                               ____|
2688  >                       ____________________                   |    |
2689  <                      |                    |                  | J1 |
2690  >                      |                    <                  |    |
2691  <                      |____________________|  ? ? ? ? ? ?     |____|
2692  >                                             |o|o|o|o|o|o|         |
2693  <                                             |o|o|o|o|o|o|         |
2694  >                                                                   |
2695  <             __                                         ___________|
2696  >            |  |                                       |
2697  <____________|  |_______________________________________|
2698
2699
2700Setting one of the switches to Off means "1", On means "0".
2701
2702
2703Setting the Node ID
2704^^^^^^^^^^^^^^^^^^^
2705
2706The eight switches in group SW2 are used to set the node ID.
2707Each node attached to the network must have an unique node ID which
2708must be different from 0.
2709Switch 8 serves as the least significant bit (LSB).
2710
2711The node ID is the sum of the values of all switches set to "1"
2712These values are::
2713
2714    Switch | Value
2715    -------|-------
2716      8    |   1
2717      7    |   2
2718      6    |   4
2719      5    |   8
2720      4    |  16
2721      3    |  32
2722      2    |  64
2723      1    | 128
2724
2725Some Examples::
2726
2727    Switch         | Hex     | Decimal
2728   1 2 3 4 5 6 7 8 | Node ID | Node ID
2729   ----------------|---------|---------
2730   0 0 0 0 0 0 0 0 |    not allowed
2731   0 0 0 0 0 0 0 1 |    1    |    1
2732   0 0 0 0 0 0 1 0 |    2    |    2
2733   0 0 0 0 0 0 1 1 |    3    |    3
2734       . . .       |         |
2735   0 1 0 1 0 1 0 1 |   55    |   85
2736       . . .       |         |
2737   1 0 1 0 1 0 1 0 |   AA    |  170
2738       . . .       |         |
2739   1 1 1 1 1 1 0 1 |   FD    |  253
2740   1 1 1 1 1 1 1 0 |   FE    |  254
2741   1 1 1 1 1 1 1 1 |   FF    |  255
2742
2743
2744Setting the I/O Base Address
2745^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2746
2747The first three switches in switch group SW1 are used to select one
2748of eight possible I/O Base addresses using the following table::
2749
2750   Switch      | Hex I/O
2751    3   2   1  | Address
2752   ------------|--------
2753   ON  ON  ON  |  260
2754   ON  ON  OFF |  290
2755   ON  OFF ON  |  2E0  (Manufacturer's default)
2756   ON  OFF OFF |  2F0
2757   OFF ON  ON  |  300
2758   OFF ON  OFF |  350
2759   OFF OFF ON  |  380
2760   OFF OFF OFF |  3E0
2761
2762
2763Setting the Base Memory (RAM) buffer Address
2764^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2765
2766The memory buffer requires 2K of a 16K block of RAM. The base of this
276716K block can be located in any of eight positions.
2768Switches 6-8 of switch group SW1 select the Base of the 16K block.
2769Within that 16K address space, the buffer may be assigned any one of four
2770positions, determined by the offset, switches 4 and 5 of group SW1::
2771
2772   Switch     | Hex RAM | Hex ROM
2773   8 7 6  5 4 | Address | Address
2774   -----------|---------|-----------
2775   0 0 0  0 0 |  C0000  |  C2000
2776   0 0 0  0 1 |  C0800  |  C2000
2777   0 0 0  1 0 |  C1000  |  C2000
2778   0 0 0  1 1 |  C1800  |  C2000
2779	      |         |
2780   0 0 1  0 0 |  C4000  |  C6000
2781   0 0 1  0 1 |  C4800  |  C6000
2782   0 0 1  1 0 |  C5000  |  C6000
2783   0 0 1  1 1 |  C5800  |  C6000
2784	      |         |
2785   0 1 0  0 0 |  CC000  |  CE000
2786   0 1 0  0 1 |  CC800  |  CE000
2787   0 1 0  1 0 |  CD000  |  CE000
2788   0 1 0  1 1 |  CD800  |  CE000
2789	      |         |
2790   0 1 1  0 0 |  D0000  |  D2000  (Manufacturer's default)
2791   0 1 1  0 1 |  D0800  |  D2000
2792   0 1 1  1 0 |  D1000  |  D2000
2793   0 1 1  1 1 |  D1800  |  D2000
2794	      |         |
2795   1 0 0  0 0 |  D4000  |  D6000
2796   1 0 0  0 1 |  D4800  |  D6000
2797   1 0 0  1 0 |  D5000  |  D6000
2798   1 0 0  1 1 |  D5800  |  D6000
2799	      |         |
2800   1 0 1  0 0 |  D8000  |  DA000
2801   1 0 1  0 1 |  D8800  |  DA000
2802   1 0 1  1 0 |  D9000  |  DA000
2803   1 0 1  1 1 |  D9800  |  DA000
2804	      |         |
2805   1 1 0  0 0 |  DC000  |  DE000
2806   1 1 0  0 1 |  DC800  |  DE000
2807   1 1 0  1 0 |  DD000  |  DE000
2808   1 1 0  1 1 |  DD800  |  DE000
2809	      |         |
2810   1 1 1  0 0 |  E0000  |  E2000
2811   1 1 1  0 1 |  E0800  |  E2000
2812   1 1 1  1 0 |  E1000  |  E2000
2813   1 1 1  1 1 |  E1800  |  E2000
2814
2815
2816Setting Interrupt Request Lines (IRQ)
2817^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2818
2819??????????????????????????????????????
2820
2821
2822Setting the Timeouts
2823^^^^^^^^^^^^^^^^^^^^
2824
2825??????????????????????????????????????
2826
2827
28288-bit cards ("Made in Taiwan R.O.C.")
2829-------------------------------------
2830
2831  - from Vojtech Pavlik <vojtech@suse.cz>
2832
2833I have named this ARCnet card "NONAME", since I got only the card with
2834no manual at all and the only text identifying the manufacturer is
2835"MADE IN TAIWAN R.O.C" printed on the card.
2836
2837::
2838
2839	  ____________________________________________________________
2840	 |                 1 2 3 4 5 6 7 8                            |
2841	 | |o|o| JP1       o|o|o|o|o|o|o|o| ON                        |
2842	 |  +              o|o|o|o|o|o|o|o|                        ___|
2843	 |  _____________  o|o|o|o|o|o|o|o| OFF         _____     |   | ID7
2844	 | |             | SW1                         |     |    |   | ID6
2845	 | > RAM (2k)    |        ____________________ |  H  |    | S | ID5
2846	 | |_____________|       |                    ||  y  |    | W | ID4
2847	 |                       |                    ||  b  |    | 2 | ID3
2848	 |                       |                    ||  r  |    |   | ID2
2849	 |                       |                    ||  i  |    |   | ID1
2850	 |                       |       90C65        ||  d  |    |___| ID0
2851	 |      SW3              |                    ||     |        |
2852	 | |o|o|o|o|o|o|o|o| ON  |                    ||  I  |        |
2853	 | |o|o|o|o|o|o|o|o|     |                    ||  C  |        |
2854	 | |o|o|o|o|o|o|o|o| OFF |____________________||     |   _____|
2855	 |  1 2 3 4 5 6 7 8                            |     |  |     |___
2856	 |  ______________                             |     |  | BNC |___|
2857	 | |              |                            |_____|  |_____|
2858	 | > EPROM SOCKET |                                           |
2859	 | |______________|                                           |
2860	 |                                              ______________|
2861	 |                                             |
2862	 |_____________________________________________|
2863
2864Legend::
2865
2866  90C65       ARCNET Chip
2867  SW1 1-5:    Base Memory Address Select
2868      6-8:    Base I/O Address Select
2869  SW2 1-8:    Node ID Select (ID0-ID7)
2870  SW3 1-5:    IRQ Select
2871      6-7:    Extra Timeout
2872      8  :    ROM Enable
2873  JP1         Led connector
2874  BNC         Coax connector
2875
2876Although the jumpers SW1 and SW3 are marked SW, not JP, they are jumpers, not
2877switches.
2878
2879Setting the jumpers to ON means connecting the upper two pins, off the bottom
2880two - or - in case of IRQ setting, connecting none of them at all.
2881
2882Setting the Node ID
2883^^^^^^^^^^^^^^^^^^^
2884
2885The eight switches in SW2 are used to set the node ID. Each node attached
2886to the network must have an unique node ID which must not be 0.
2887Switch 1 (ID0) serves as the least significant bit (LSB).
2888
2889Setting one of the switches to Off means "1", On means "0".
2890
2891The node ID is the sum of the values of all switches set to "1"
2892These values are::
2893
2894   Switch | Label | Value
2895   -------|-------|-------
2896     1    | ID0   |   1
2897     2    | ID1   |   2
2898     3    | ID2   |   4
2899     4    | ID3   |   8
2900     5    | ID4   |  16
2901     6    | ID5   |  32
2902     7    | ID6   |  64
2903     8    | ID7   | 128
2904
2905Some Examples::
2906
2907    Switch         | Hex     | Decimal
2908   8 7 6 5 4 3 2 1 | Node ID | Node ID
2909   ----------------|---------|---------
2910   0 0 0 0 0 0 0 0 |    not allowed
2911   0 0 0 0 0 0 0 1 |    1    |    1
2912   0 0 0 0 0 0 1 0 |    2    |    2
2913   0 0 0 0 0 0 1 1 |    3    |    3
2914       . . .       |         |
2915   0 1 0 1 0 1 0 1 |   55    |   85
2916       . . .       |         |
2917   1 0 1 0 1 0 1 0 |   AA    |  170
2918       . . .       |         |
2919   1 1 1 1 1 1 0 1 |   FD    |  253
2920   1 1 1 1 1 1 1 0 |   FE    |  254
2921   1 1 1 1 1 1 1 1 |   FF    |  255
2922
2923
2924Setting the I/O Base Address
2925^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2926
2927The last three switches in switch block SW1 are used to select one
2928of eight possible I/O Base addresses using the following table::
2929
2930
2931   Switch      | Hex I/O
2932    6   7   8  | Address
2933   ------------|--------
2934   ON  ON  ON  |  260
2935   OFF ON  ON  |  290
2936   ON  OFF ON  |  2E0  (Manufacturer's default)
2937   OFF OFF ON  |  2F0
2938   ON  ON  OFF |  300
2939   OFF ON  OFF |  350
2940   ON  OFF OFF |  380
2941   OFF OFF OFF |  3E0
2942
2943
2944Setting the Base Memory (RAM) buffer Address
2945^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2946
2947The memory buffer (RAM) requires 2K. The base of this buffer can be
2948located in any of eight positions. The address of the Boot Prom is
2949memory base + 0x2000.
2950
2951Jumpers 3-5 of jumper block SW1 select the Memory Base address.
2952
2953::
2954
2955   Switch              | Hex RAM | Hex ROM
2956    1   2   3   4   5  | Address | Address *)
2957   --------------------|---------|-----------
2958   ON  ON  ON  ON  ON  |  C0000  |  C2000
2959   ON  ON  OFF ON  ON  |  C4000  |  C6000
2960   ON  ON  ON  OFF ON  |  CC000  |  CE000
2961   ON  ON  OFF OFF ON  |  D0000  |  D2000  (Manufacturer's default)
2962   ON  ON  ON  ON  OFF |  D4000  |  D6000
2963   ON  ON  OFF ON  OFF |  D8000  |  DA000
2964   ON  ON  ON  OFF OFF |  DC000  |  DE000
2965   ON  ON  OFF OFF OFF |  E0000  |  E2000
2966
2967  *) To enable the Boot ROM set the jumper 8 of jumper block SW3 to position ON.
2968
2969The jumpers 1 and 2 probably add 0x0800, 0x1000 and 0x1800 to RAM adders.
2970
2971Setting the Interrupt Line
2972^^^^^^^^^^^^^^^^^^^^^^^^^^
2973
2974Jumpers 1-5 of the jumper block SW3 control the IRQ level::
2975
2976    Jumper              |  IRQ
2977    1   2   3   4   5   |
2978   ----------------------------
2979    ON  OFF OFF OFF OFF |  2
2980    OFF ON  OFF OFF OFF |  3
2981    OFF OFF ON  OFF OFF |  4
2982    OFF OFF OFF ON  OFF |  5
2983    OFF OFF OFF OFF ON  |  7
2984
2985
2986Setting the Timeout Parameters
2987^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2988
2989The jumpers 6-7 of the jumper block SW3 are used to determine the timeout
2990parameters. These two jumpers are normally left in the OFF position.
2991
2992
2993
2994(Generic Model 9058)
2995--------------------
2996  - from Andrew J. Kroll <ag784@freenet.buffalo.edu>
2997  - Sorry this sat in my to-do box for so long, Andrew! (yikes - over a
2998    year!)
2999
3000::
3001
3002								      _____
3003								     |    <
3004								     | .---'
3005    ________________________________________________________________ | |
3006   |                           |     SW2     |                      |  |
3007   |   ___________             |_____________|                      |  |
3008   |  |           |              1 2 3 4 5 6                     ___|  |
3009   |  >  6116 RAM |         _________                         8 |   |  |
3010   |  |___________|        |20MHzXtal|                        7 |   |  |
3011   |                       |_________|       __________       6 | S |  |
3012   |    74LS373                             |          |-     5 | W |  |
3013   |   _________                            |      E   |-     4 |   |  |
3014   |   >_______|              ______________|..... P   |-     3 | 3 |  |
3015   |                         |              |    : O   |-     2 |   |  |
3016   |                         |              |    : X   |-     1 |___|  |
3017   |   ________________      |              |    : Y   |-           |  |
3018   |  |      SW1       |     |      SL90C65 |    :     |-           |  |
3019   |  |________________|     |              |    : B   |-           |  |
3020   |    1 2 3 4 5 6 7 8      |              |    : O   |-           |  |
3021   |                         |_________o____|..../ A   |-    _______|  |
3022   |    ____________________                |      R   |-   |       |------,
3023   |   |                    |               |      D   |-   |  BNC  |   #  |
3024   |   > 2764 PROM SOCKET   |               |__________|-   |_______|------'
3025   |   |____________________|              _________                |  |
3026   |                                       >________| <- 74LS245    |  |
3027   |                                                                |  |
3028   |___                                               ______________|  |
3029       |H H H H H H H H H H H H H H H H H H H H H H H|               | |
3030       |U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U_U|               | |
3031								      \|
3032
3033Legend::
3034
3035  SL90C65 	ARCNET Controller / Transceiver /Logic
3036  SW1	1-5:	IRQ Select
3037	  6:	ET1
3038	  7:	ET2
3039	  8:	ROM ENABLE
3040  SW2	1-3:    Memory Buffer/PROM Address
3041	3-6:	I/O Address Map
3042  SW3	1-8:	Node ID Select
3043  BNC		BNC RG62/U Connection
3044		*I* have had success using RG59B/U with *NO* terminators!
3045		What gives?!
3046
3047SW1: Timeouts, Interrupt and ROM
3048^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
3049
3050To select a hardware interrupt level set one (only one!) of the dip switches
3051up (on) SW1...(switches 1-5)
3052IRQ3, IRQ4, IRQ5, IRQ7, IRQ2. The Manufacturer's default is IRQ2.
3053
3054The switches on SW1 labeled EXT1 (switch 6) and EXT2 (switch 7)
3055are used to determine the timeout parameters. These two dip switches
3056are normally left off (down).
3057
3058   To enable the 8K Boot PROM position SW1 switch 8 on (UP) labeled ROM.
3059   The default is jumper ROM not installed.
3060
3061
3062Setting the I/O Base Address
3063^^^^^^^^^^^^^^^^^^^^^^^^^^^^
3064
3065The last three switches in switch group SW2 are used to select one
3066of eight possible I/O Base addresses using the following table::
3067
3068
3069   Switch | Hex I/O
3070   4 5 6  | Address
3071   -------|--------
3072   0 0 0  |  260
3073   0 0 1  |  290
3074   0 1 0  |  2E0  (Manufacturer's default)
3075   0 1 1  |  2F0
3076   1 0 0  |  300
3077   1 0 1  |  350
3078   1 1 0  |  380
3079   1 1 1  |  3E0
3080
3081
3082Setting the Base Memory Address (RAM & ROM)
3083^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
3084
3085The memory buffer requires 2K of a 16K block of RAM. The base of this
308616K block can be located in any of eight positions.
3087Switches 1-3 of switch group SW2 select the Base of the 16K block.
3088(0 = DOWN, 1 = UP)
3089I could, however, only verify two settings...
3090
3091
3092::
3093
3094   Switch| Hex RAM | Hex ROM
3095   1 2 3 | Address | Address
3096   ------|---------|-----------
3097   0 0 0 |  E0000  |  E2000
3098   0 0 1 |  D0000  |  D2000  (Manufacturer's default)
3099   0 1 0 |  ?????  |  ?????
3100   0 1 1 |  ?????  |  ?????
3101   1 0 0 |  ?????  |  ?????
3102   1 0 1 |  ?????  |  ?????
3103   1 1 0 |  ?????  |  ?????
3104   1 1 1 |  ?????  |  ?????
3105
3106
3107Setting the Node ID
3108^^^^^^^^^^^^^^^^^^^
3109
3110The eight switches in group SW3 are used to set the node ID.
3111Each node attached to the network must have an unique node ID which
3112must be different from 0.
3113Switch 1 serves as the least significant bit (LSB).
3114switches in the DOWN position are OFF (0) and in the UP position are ON (1)
3115
3116The node ID is the sum of the values of all switches set to "1"
3117These values are::
3118
3119    Switch | Value
3120    -------|-------
3121      1    |   1
3122      2    |   2
3123      3    |   4
3124      4    |   8
3125      5    |  16
3126      6    |  32
3127      7    |  64
3128      8    | 128
3129
3130Some Examples::
3131
3132      Switch#     |   Hex   | Decimal
3133  8 7 6 5 4 3 2 1 | Node ID | Node ID
3134  ----------------|---------|---------
3135  0 0 0 0 0 0 0 0 |    not allowed  <-.
3136  0 0 0 0 0 0 0 1 |    1    |    1    |
3137  0 0 0 0 0 0 1 0 |    2    |    2    |
3138  0 0 0 0 0 0 1 1 |    3    |    3    |
3139      . . .       |         |         |
3140  0 1 0 1 0 1 0 1 |   55    |   85    |
3141      . . .       |         |         + Don't use 0 or 255!
3142  1 0 1 0 1 0 1 0 |   AA    |  170    |
3143      . . .       |         |         |
3144  1 1 1 1 1 1 0 1 |   FD    |  253    |
3145  1 1 1 1 1 1 1 0 |   FE    |  254    |
3146  1 1 1 1 1 1 1 1 |   FF    |  255  <-'
3147
3148
3149Tiara
3150=====
3151
3152(model unknown)
3153---------------
3154
3155  - from Christoph Lameter <christoph@lameter.com>
3156
3157
3158Here is information about my card as far as I could figure it out::
3159
3160
3161  ----------------------------------------------- tiara
3162  Tiara LanCard of Tiara Computer Systems.
3163
3164  +----------------------------------------------+
3165  !           ! Transmitter Unit !               !
3166  !           +------------------+             -------
3167  !          MEM                              Coax Connector
3168  !  ROM    7654321 <- I/O                     -------
3169  !  :  :   +--------+                           !
3170  !  :  :   ! 90C66LJ!                         +++
3171  !  :  :   !        !                         !D  Switch to set
3172  !  :  :   !        !                         !I  the Nodenumber
3173  !  :  :   +--------+                         !P
3174  !                                            !++
3175  !         234567 <- IRQ                      !
3176  +------------!!!!!!!!!!!!!!!!!!!!!!!!--------+
3177	       !!!!!!!!!!!!!!!!!!!!!!!!
3178
3179- 0 = Jumper Installed
3180- 1 = Open
3181
3182Top Jumper line Bit 7 = ROM Enable 654=Memory location 321=I/O
3183
3184Settings for Memory Location (Top Jumper Line)
3185
3186===     ================
3187456     Address selected
3188===     ================
3189000	C0000
3190001     C4000
3191010     CC000
3192011     D0000
3193100     D4000
3194101     D8000
3195110     DC000
3196111     E0000
3197===     ================
3198
3199Settings for I/O Address (Top Jumper Line)
3200
3201===     ====
3202123     Port
3203===     ====
3204000	260
3205001	290
3206010	2E0
3207011	2F0
3208100	300
3209101	350
3210110	380
3211111	3E0
3212===     ====
3213
3214Settings for IRQ Selection (Lower Jumper Line)
3215
3216====== =====
3217234567
3218====== =====
3219011111 IRQ 2
3220101111 IRQ 3
3221110111 IRQ 4
3222111011 IRQ 5
3223111110 IRQ 7
3224====== =====
3225
3226Other Cards
3227===========
3228
3229I have no information on other models of ARCnet cards at the moment.  Please
3230send any and all info to:
3231
3232	apenwarr@worldvisions.ca
3233
3234Thanks.
3235