參數(shù)資料
型號: M48T212V-85MH1F
廠商: STMICROELECTRONICS
元件分類: 時鐘/數(shù)據(jù)恢復(fù)及定時提取
英文描述: REAL TIME CLOCK, PDSO44
封裝: 0.330 INCH, ROHS COMPLIANT, PLASTIC, SOH-44
文件頁數(shù): 10/35頁
文件大?。?/td> 348K
代理商: M48T212V-85MH1F
Obsolete
Product(s)
- Obsolete
Product(s)
Clock operation
M48T212V
Table 7.
TIMEKEEPER register map
Keys:
S = Sign bit
FT = Frequency test bit
R = READ bit
W = WRITE bit
ST = Stop bit
0 = Must be set to '0'
BL = Battery low flag (read only)
BMB0-BMB4 = Watchdog multiplier bits
AFE = Alarm flag enable flag
RB0-RB1 = Watchdog resolution bits
WDS = Watchdog steering bit
ABE = Alarm in battery back-up mode enable bit
RPT1-RPT5 = Alarm repeat mode bits
WDF = Watchdog flag (read only)
AF = Alarm flag (read only)
Y = '1' or '0'
Address
Function/range
BCD format
D7
D6
D5
D4
D3
D2
D1
D0
Fh
10 Years
Year
00-99
Eh
0
10M
Month
01-12
Dh
0
10 date
Date: Day of month
Date
01-31
Ch
0
FT
0
Day of week
Day
01-7
Bh
0
10 hours
Hours (24 hour format)
Hours
00-23
Ah
0
10 minutes
Minutes
Min
00-59
9h
ST
10 seconds
Seconds
Sec
00-59
8h
W
R
S
Calibration
Control
7h
WDS
BMB4 BMB3
BMB2
BMB1 BMB0
RB1
RB0
Watchdog
6h
AFE
0
ABE
Al 10M
Alarm month
A month
01-12
5h
RPT4
RPT5
AI 10 date
Alarm date
A date
01-31
4h
RPT3
0
AI 10 hour
Alarm hour
A hour
00-23
3h
RPT2
Alarm 10 minutes
Alarm minutes
A min
00-59
2h
RPT1
Alarm 10 seconds
Alarm seconds
A sec
00-59
1h
1000 year
100 year
Century
00-99
0h
WDF
AF
Y
BL
YYYY
Flag
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