M48T59-70PC1 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
M48T59-70PC1 Datasheet PDF : 29 Pages
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M48T59, M48T59Y, M48T59V*
Table 5. Register Map
Data
Address
D7
D6
D5
D4
D3
D2
D1
D0
Function/Range
BCD Format
1FFFh
10 Years
Year
Year
00-99
1FFEh
0
0
0
10 M
Month
Month
01-12
1FFDh
0
0
10 Date
Date
Date
01-31
1FFCh
0
FT CEB CB
0
Day
Century/Day 00-01/01-07
1FFBh
0
0
10 Hours
Hours
Hours
00-23
1FFAh
0
10 Minutes
Minutes
Minutes
00-59
1FF9h
ST
10 Seconds
Seconds
Seconds
00-59
1FF8h
W
R
S
Calibration
Control
1FF7h WDS BMB4 BMB3 BMB2 BMB1 BMB0 RB1 RB0
Watchdog
1FF6h AFE
Y
ABE
Y
Y
Y
Y
Y
Interrupts
1FF5h RPT4 Y
Al. 10 Date
Alarm Date
Alarm Date
01-31
1FF4h RPT3 Y
Al. 10 Hours
Alarm Hours
Alarm Hours
00-23
1FF3h RPT2
Alarm 10 Minutes
Alarm Minutes
Alarm Minutes
00-59
1FF2h RPT1
Alarm 10 Seconds
Alarm Seconds
Alarm Seconds
00-59
1FF1h
Y
Y
Y
Y
Y
Y
Y
Y
Unused
1FF0h WDF AF
Z
BL
Z
Z
Z
Z
Flags
Keys: S = SIGN Bit
FT = FREQUENCY TEST Bit
R = READ Bit
W = WRITE Bit
ST = STOP Bit
0 = Must be set to '0'
Y = '1' or '0'
Z = '0' and are Read only
AF = Alarm Flag (Read only)
BL = Battery Low (Read only)
WDS = Watchdog Steering Bit
BMB0-BMB4 = Watchdog Multiplier Bits
RB0-RB1 = Watchdog Resolution Bits
AFE = Alarm Flag Enable
ABE = Alarm in Battery Back-up Mode Enable
RPT1-RPT4 = Alarm Repeat Mode Bits
WDF = Watchdog Flag (Read only)
CEB = Century Enable Bit
CB = Century Bit
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