m41t83 STMicroelectronics, m41t83 Datasheet - Page 25

• Manufacturer Part Number: m41t83
• Description: Serial I 2c Bus Rtc With Battery Switchover
• Manufacturer: STMicroelectronics

Table 4.
1. See
2. AF2 will always read ‘0’, if the AL2E bit is set to ‘0’.
Addr
19h-
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
1Fh
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
10h
11h
12h
13h
14h
15h
16h
17h
18h
Table 5: Key to Table 4: M41T83 clock/control register map (32
RPT14
RPT13
RPT12
RPT11
RPT24
RPT23
RPT22
RPT21
OFIE
WDF
OUT
A1IE
A2IE
ACS
CB1
RS3
D7
ST
TE
0
0
0
0
M41T83 clock/control register map (32 bytes)
RPT15
RPT25
SQWE
BMB4
TI/TP
CB0
AC6
RS2
AF1
HT
D6
FT
0.1 seconds
0
0
0
0
0
Alarm1 10 seconds
Alarm2 10 seconds
Alarm1 10 minutes
Alarm2 10 minutes
10 years
10 seconds
10 minutes
BMB3
AF2
DCS
ABE
RS1
AC5
TIE
D5
AI1 10 date
AI1 10 hour
AI2 10 date
AI2 10 hour
0
0
0
10 hours
(2)
10 date
Timer countdown value
User SRAM (7 bytes)
BMB2
DC4
10M
10M
AC4
RS0
10M
Al1
Al2
D4
BL
0
0
BMB1
DC3
AC3
D3
TF
0
0
0
Hours (24 hour format)
Date: day of month
Alarm1 seconds
Alarm2 seconds
BMB0
Alarm1 minutes
Alarm2 minutes
DC2
Alarm 1month
Alarm2 month
AC2
0.01 seconds
OF
D2
Alarm1 date
Alarm1 hour
Alarm2 date
Alarm2 hour
0
0
seconds
Minutes
Month
Year
Day of week
bytes).
AL2E
(1)
DC1
RB1
AC1
TD1
D1
0
DC0
OTP
RB0
TD0
AC0
D0
0
Digital calibration
SRAM/Al2 month
SRAM/Al2 date
SRAM/Al2 hour
SRAM/Al2 min
SRAM/Al2 sec
Century/hours
Timer control
Timer value
Al1 month
calibration
Watchdog
Function/range BCD
seconds
seconds
Al1 hour
Al1 date
Minutes
Al1 min
Al1 sec
Analog
SRAM
Month
SQW
Flags
Date
Year
Day
format
0-3/00-23
00-99
00-59
00-59
01-31
01-12
00-99
01-12
01-31
00-23
00-59
00-59
01-12
01-31
00-23
00-59
00-59
01-7
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