1c71f1e05SAlexandre BelloniAbracon ABX80X I2C ultra low power RTC/Alarm chip 2c71f1e05SAlexandre Belloni 3c71f1e05SAlexandre BelloniThe Abracon ABX80X family consist of the ab0801, ab0803, ab0804, ab0805, ab1801, 4c71f1e05SAlexandre Belloniab1803, ab1804 and ab1805. The ab0805 is the superset of ab080x and the ab1805 5c71f1e05SAlexandre Belloniis the superset of ab180x. 6c71f1e05SAlexandre Belloni 7c71f1e05SAlexandre BelloniRequired properties: 8c71f1e05SAlexandre Belloni 9c71f1e05SAlexandre Belloni - "compatible": should one of: 10c71f1e05SAlexandre Belloni "abracon,abx80x" 11c71f1e05SAlexandre Belloni "abracon,ab0801" 12c71f1e05SAlexandre Belloni "abracon,ab0803" 13c71f1e05SAlexandre Belloni "abracon,ab0804" 14c71f1e05SAlexandre Belloni "abracon,ab0805" 15c71f1e05SAlexandre Belloni "abracon,ab1801" 16c71f1e05SAlexandre Belloni "abracon,ab1803" 17c71f1e05SAlexandre Belloni "abracon,ab1804" 18c71f1e05SAlexandre Belloni "abracon,ab1805" 19*a26ec885SMarek Vasut "microcrystal,rv1805" 20c71f1e05SAlexandre Belloni Using "abracon,abx80x" will enable chip autodetection. 21c71f1e05SAlexandre Belloni - "reg": I2C bus address of the device 22c71f1e05SAlexandre Belloni 23c71f1e05SAlexandre BelloniOptional properties: 24c71f1e05SAlexandre Belloni 25c71f1e05SAlexandre BelloniThe abx804 and abx805 have a trickle charger that is able to charge the 26c71f1e05SAlexandre Belloniconnected battery or supercap. Both the following properties have to be defined 27c71f1e05SAlexandre Belloniand valid to enable charging: 28c71f1e05SAlexandre Belloni 29c71f1e05SAlexandre Belloni - "abracon,tc-diode": should be "standard" (0.6V) or "schottky" (0.3V) 30c71f1e05SAlexandre Belloni - "abracon,tc-resistor": should be <0>, <3>, <6> or <11>. 0 disables the output 3173852e56SBaruch Siach resistor, the other values are in kOhm. 32