參數(shù)資料
型號: M48T37Y-70MH1F
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: 0 TIMER(S), REAL TIME CLOCK, PDSO44
封裝: 0.330 INCH, ROHS COMPLIANT, PLASTIC, SOH-44
文件頁數(shù): 5/30頁
文件大?。?/td> 515K
代理商: M48T37Y-70MH1F
M48T37Y, M48T37V
Clock operations
Doc ID 7019 Rev 9
Table 5.
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 backup mode enable bit
RPT1-RPT4 = Alarm repeat mode bits
WDF = Watchdog flag (read only)
AF = Alarm flag (read only)
Z = '0' and are read only
Address
Data
Function/range
BCD format
D7
D6
D5
D4
D3
D2
D1
D0
7FFFh
10 years
Year
00-99
7FFEh
0
10 M
Month
01-12
7FFDh
0
10 date
Date: Day of month
Date
01-31
7FFCh
0
FT
0
Day of week
Day
01-7
7FFBh
0
10 hours
Hours
00-23
7FFAh
0
10 minutes
Minutes
Min
00-59
7FF9h
ST
10 seconds
Seconds
Sec
00-59
7FF8h
W
R
S
Calibration
Control
7FF7h
WDS
BMB4
BMB3
BMB2
BMB1 BMB0
RB1
RB0
Watchdog
7FF6h
AFE
0
ABE
0
Interrupts
7FF5h
RPT4
0
AIarm 10 date
Alarm date
01-31
7FF4h
RPT3
0
AIarm 10 hours
Alarm hours
Alarm hour
00-23
7FF3h
RPT2
Alarm 10 minutes
Alarm minutes
Alarm min
00-59
7FF2h
RPT1
Alarm 10 seconds
Alarm seconds
Alarm sec
00-59
7FF1h
1000 year
100 year
Century
00-99
7FF0h
WDF
AF
Z
BL
Z
Flags
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