參數(shù)資料
型號: M41T256Y
廠商: 意法半導(dǎo)體
英文描述: 256 Kbit 32K x8 SERIAL RTC
中文描述: 256千位32K的x8串行實時時鐘
文件頁數(shù): 17/26頁
文件大小: 363K
代理商: M41T256Y
17/26
M41T256Y
Table 9. TIMEKEEPER
Register Map
Keys: S = Sign Bit
FT = Frequency Test Bit
ST = Stop Bit
WC = Write Clock Bit
X = '1' or '0'
Note: 7FF0h through 7FF6h are invalid addresses and when read will return arbitrary data.
BL = Battery Low Flag (Read only bit)
TB = Tamper Bit (Read only bit)
TEB = Tamper Enable Bit
0 = Must be set to '0'
SLP = Sleep Mode Bit
Address
Data
Function/Range
BCD Format
D7
D6
D5
D4
D3
D2
D1
D0
7FFFh
10 Years
Year
Year
00-99
7FFEh
0
0
0
10M
Month
Month
01-12
7FFDh
0
0
10 Date
Date: Day of Month
Date
01-31
7FFCh
BL
FT
TEB
TB
0
Day of Week
Tamper/Day
0-1/01-07
7FFBh
0
0
10 Hours
Hours (24 Hour Format)
Hours
00-23
7FFAh
0
10 Minutes
Minutes
Minutes
00-59
7FF9h
ST
10 Seconds
Seconds
Seconds
00-59
7FF8h
WC
SLP
S
Calibration
Control
7FF7h
0.1 Seconds
0.01 Seconds
Seconds
00-99
7FF6h
X
X
X
X
X
X
X
X
Reserved
7FF5h
X
X
X
X
X
X
X
X
Reserved
7FF4h
X
X
X
X
X
X
X
X
Reserved
7FF3h
X
X
X
X
X
X
X
X
Reserved
7FF2h
X
X
X
X
X
X
X
X
Reserved
7FF1h
X
X
X
X
X
X
X
X
Reserved
7FF0h
X
X
X
X
X
X
X
X
Reserved
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