M41T83 查看數據表（PDF） - STMicroelectronics

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M41T83

Serial RTC with battery switchover

STMicroelectronics 

Clock operation

M41T82 M41T83

Table 3. Key to Table 2 (M41T82 clock/control register map (32 bytes))

Code

Explanation

0

Must be set to zero

ABE

Alarm in battery back-up Enable bit

AC0-AC6

ACS

Analog Calibration bits

Analog Calibration Sign bit

AF1, AF2

Alarm Flag bits

AL2E

Alarm 2 Enable bit

BL

Battery Low bit

BMB0-BMB4

CB0, CB1

Watchdog Multiplier bits

Century bits

DC0-DC4

Digital Calibration bits

DCS

Digital Calibration Sign bit

FT

Frequency test bit

HT

Halt Update bit

OF

Oscillator Fail bit

RB0-RB2

Watchdog Resolution bits

RPT11-RPT15

Alarm 1 Repeat Mode bits

RPT21-RPT25

ST

Alarm 2 Repeat Mode bits

Stop bit

TD0, TD1

Timer Frequency bits

TE

Timer Enable bit

TF

WDF

Timer Flag

Watchdog Flag

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