M41T83 查看數據表（PDF） - STMicroelectronics
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M41T83 Datasheet PDF : 58 Pages
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M41T82 M41T83
Clock operation
Table 2. M41T82 clock/control register map (32 bytes)(1)
Addr
D7
D6
D5
D4
D3
D2
D1
D0
Function/range BCD
format
00h
0.1 seconds
0.01 seconds
seconds
00-99
01h
ST
10 seconds
02h
0
10 minutes
03h
CB1 CB0
10 hours
04h
0
0
0
0
05h
0
0
10 date
seconds
minutes
Hours (24 hour format)
0
Day of week
Date: day of month
seconds
minutes
Century/hours
Day
Date
00-59
00-59
0-3/00-23
01-7
01-31
06h
0
0
0
10M
Month
Month
01-12
07h
10 years
Year
Year
00-99
08h
0
FT
DCS DC4 DC3 DC2 DC1 DC0 Digital calibration
09h
0
BMB4 BMB3 BMB2 BMB1 BMB0 RB1 RB0
Watchdog
0Ah
0
0
ABE Al1 10M
Alarm1 month
Al1 month
01-12
0Bh RPT14 RPT15 AI1 10 date
Alarm1 date
Al1 date
01-31
0Ch RPT13 HT
AI1 10 hour
Alarm1 hour
Al1 hour
00-23
0Dh RPT12
Alarm1 10 minutes
Alarm1 minutes
Al1 min
00-59
0Eh RPT11
Alarm1 10 seconds
0Fh
WDF
AF1 AF2(2)
BL
Alarm1 seconds
TF
OF
0
0
Al1 sec
Flags
00-59
10h
Timer countdown value
Timer value
11h
TE
0
0
0
0
0
TD1 TD0 Timer control
12h ACS AC6 AC5 AC4 AC3 AC2 AC1 AC0 Analog calibration
13h
0
0
0
0
0
0 AL2E 0
SQW
14h
0
0
0 Al2 10M
Alarm2 month
SRAM/Al2 month 01-12
15h RPT24 RPT25 AI2 10 date
Alarm2 month
SRAM/Al2 date 01-31
16h RPT23 0
AI2 10 hour
Alarm2 date
SRAM/Al2 hour 00-23
17h RPT22
Alarm2 10 minutes
Alarm2 minutes
SRAM/Al2 min 00-59
18h RPT21
19h-1Fh
Alarm2 10 seconds
Alarm2 seconds
User SRAM (7 bytes)
SRAM/Al2 sec
SRAM
00-59
1. See Table 3: Key to Table 2 (M41T82 clock/control register map (32 bytes))
2. AF2 will always read ‘0’, if the AL2E bit is set to ‘0’.
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