RV-8564 Datasheet, PDF (16/40 Pages) MICORO CRYSTAL SWITZERLAND – I2C-Bus Interface Real Time Clock

Micro Crystal
Real Time Clock / Calendar Module
RV-8564
8.7. REGISTER RESET VALUES
Address
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
Function
Control / Status 1
Control / Status 2
Seconds
Minutes
Hours
Days
Weekdays
Months / Century
Years
Minute Alarm
Hour Alarm
Day Alarm
Weekday Alarm
CLKOUT Frequency
Timer Control
Timer
Bit 7
0
0
1
X
X
X
X
X
X
1
1
1
1
1
0
X
Bit 6
0
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Bit 5
0
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Bit 4
0
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Bit positions labeled as “X” are undefined at power-on and unchanged by subsequent resets.
Bit 3
1
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Bit 2
0
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Bit 1
0
0
X
X
X
X
X
X
X
X
X
X
X
0
1
X
Bit 0
0
0
X
X
X
X
X
X
X
X
X
X
X
0
1
X
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