User Manual

MAX6901
3-Wire Serial RTC in a TDFN
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Table 2. Register Address/Definition (continued)
REGISTER ADDRESS REGISTER DEFINITION
FUNCTION A7 A6 A5 A4 A3 A2 A1 A0 VALUE D7 D6 D5 D4 D3 D2 D1 D0
0
YEAR
DAY
MONTH
DATE
HOUR
MINUTE
SECOND
ALARM
CONFIG
1001010
RD
/W
*POR STATE 0
0 0 0 0 0 0 0
RESERVED 0 0 0 0 0 1 1 1
Do not write
to this location.
1001011
RD
/W
*POR STATE
00000111
ALARM
THRESHOLDS
00-59
0 10 SEC 1 SEC
SECOND
1001100
RD
/W
*POR STATE 0 1 1 1 1111
00-59 0 10 MIN 1 MIN
MINUTE
1001101
RD
/W
*POR STATE
0 1111111
00-23 12/24
10
HR
HOUR
1001110
RD
/W
01-12 1/0
0
A/P
0/1
10
HR
1 HR
*POR STATE 1 0 1 11111
01-28/29
01-30
01-31
0 0 10 DATE 1 DATE
DATE
1001111
RD
/W
*POR STATE
0 0 111111
01-12 0 0 0 10 M 1 MONTH
MONTH
1010000
RD
/W
*POR STATE
0 0 0 11111
01-07 0 0 0 0 0 WEEKDAY
DAY
1010001
RD
/W
*POR STATE
0 0 0 0 0 111
00-99 10 YEAR 1 YEAR
YEAR
1010010
RD
/W
*POR STATE 1 1 1 1 1111
CLOCK
BURST
1011111
RD
/W
Note: *POR STATE
defines power-on reset state of register content.