18c2ecf20Sopenharmony_ciAbracon ABX80X I2C ultra low power RTC/Alarm chip
28c2ecf20Sopenharmony_ci
38c2ecf20Sopenharmony_ciThe Abracon ABX80X family consist of the ab0801, ab0803, ab0804, ab0805, ab1801,
48c2ecf20Sopenharmony_ciab1803, ab1804 and ab1805. The ab0805 is the superset of ab080x and the ab1805
58c2ecf20Sopenharmony_ciis the superset of ab180x.
68c2ecf20Sopenharmony_ci
78c2ecf20Sopenharmony_ciRequired properties:
88c2ecf20Sopenharmony_ci
98c2ecf20Sopenharmony_ci - "compatible": should one of:
108c2ecf20Sopenharmony_ci        "abracon,abx80x"
118c2ecf20Sopenharmony_ci        "abracon,ab0801"
128c2ecf20Sopenharmony_ci        "abracon,ab0803"
138c2ecf20Sopenharmony_ci        "abracon,ab0804"
148c2ecf20Sopenharmony_ci        "abracon,ab0805"
158c2ecf20Sopenharmony_ci        "abracon,ab1801"
168c2ecf20Sopenharmony_ci        "abracon,ab1803"
178c2ecf20Sopenharmony_ci        "abracon,ab1804"
188c2ecf20Sopenharmony_ci        "abracon,ab1805"
198c2ecf20Sopenharmony_ci        "microcrystal,rv1805"
208c2ecf20Sopenharmony_ci	Using "abracon,abx80x" will enable chip autodetection.
218c2ecf20Sopenharmony_ci - "reg": I2C bus address of the device
228c2ecf20Sopenharmony_ci
238c2ecf20Sopenharmony_ciOptional properties:
248c2ecf20Sopenharmony_ci
258c2ecf20Sopenharmony_ciThe abx804 and abx805 have a trickle charger that is able to charge the
268c2ecf20Sopenharmony_ciconnected battery or supercap. Both the following properties have to be defined
278c2ecf20Sopenharmony_ciand valid to enable charging:
288c2ecf20Sopenharmony_ci
298c2ecf20Sopenharmony_ci - "abracon,tc-diode": should be "standard" (0.6V) or "schottky" (0.3V)
308c2ecf20Sopenharmony_ci - "abracon,tc-resistor": should be <0>, <3>, <6> or <11>. 0 disables the output
318c2ecf20Sopenharmony_ci                          resistor, the other values are in kOhm.
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