Rainbow Electronics MAX6902 - Manual (Page 6)

MAX6902
SPI-Compatible RTC in a TDFN
6 _______________________________________________________________________________________
REGISTER ADDRESS REGISTER DEFINITION
FUNCTION A7 A6 A5 A4 A3 A2 A1 A0 VALUE D7 D6 D5 D4 D3 D2 D1 D0
ALARM
CONFIG
RD 0 0 1 0 1 0 1 0
YEAR
DAY
MONTH
DATE HOUR
MINUTE SECOND
/W *POR STATE 0 0 0 0 0 0 0 0
RESERVED RD 0 0 1 0 1 1 1 0 0 0 0 0 1 1 1
Do not write
to this location.
/W *POR STATE 0 0 0 0 0 1 1 1
ALARM
THRESHOLDS
SECONDS RD 0 0 1 1 0 0 1 00-59 0 10 SEC 1 SEC
/W *POR STATE 0 1 1 1 1 1 1 1
MINUTES RD 0 0 1 1 0 1 1 00-59 0 10 MIN 1 MIN
/W *POR STATE 0 1 1 1 1 1 1 1
HOURS RD 0 0 1 1 1 0 1 00-23 12/24
10
HR
10
HR
/W 01-12 1/0
0
A/P
0/1
1 HR
*POR STATE 1 0 1 1 1 1 1 1
DATE RD 0 0 1 1 1 1 1
01-28/29
01-30
01-31 0 0 10 DATE 1 DATE
/W *POR STATE 0 0 1 1 1 1 1 1
MONTH RD 0 1 0 0 0 0 1 01-12 0 0 0 10M 1 MONTH
/W *POR STATE 0 0 0 1 1 1 1 1
DAY RD 0 1 0 0 0 1 1 01-07 0 0 0 0 0 WEEK DAY
/W *POR STATE 0 0 0 0 0 1 1 1
YEAR RD 0 1 0 0 1 0 1 00-99 10 YEAR 1 YEAR
/W *POR STATE 1 1 1 1 1 1 1 1
CLOCK
BURST
RD 0 1 1 1 1 1 1
/W
Figure 2. Register Address Definition (Sheet 2 of 3)