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M41T93RMY6F Datasheet(PDF) 18 Page - STMicroelectronics

No. de pieza M41T93RMY6F
Descripción Electrónicos  Serial SPI bus RTC with battery switchover
PDF  49 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M41T93RMY6F Datasheet(HTML) 18 Page - STMicroelectronics

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Clock operation
M41T93
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Table 3.
Clock/control register map (32 Bytes)
1.
AF2 will always read ‘0,’ if the AL2E Bit is set to ‘0.’
Addr
Function/Range BCD
Format
D7
D6
D5
D4
D3
D2
D1
D0
00h
0.1 Seconds
0.01 Seconds
Seconds
00-99
01h
ST
10 Seconds
Seconds
Seconds
00-59
02h
0
10 Minutes
Minutes
Minutes
00-59
03h
CB1
CB0
10 Hours
Hours (24 Hour Format)
Century/Hours
0-3/00-23
04h
0
0
0
0
0
Day of Week
Day
01-7
05h
0
0
10 Date
Date: Day of Month
Date
01-31
06h
0
0
0
10M
Month
Month
01-12
07h
10 Years
Year
Year
00-99
08h
OUT
FT
DCS
DC4
DC3
DC2
DC1
DC0
Digital Calibration
09h
OFIE
BMB4BMB3BMB2BMB1BMB0
RB1
RB0
Watchdog
0Ah
A1IE
SQWE
ABE
Al1 10M
Alarm 1Month
Al1 Month
01-12
0Bh
RPT14
RPT15
AI1 10 Date
Alarm1 Date
Al1 Date
01-31
0Ch
RPT13
HT
AI1 10 Hour
Alarm1 Hour
Al1 Hour
00-23
0Dh
RPT12
Alarm1 10 Minutes
Alarm1 Minutes
Al1 Min
00-59
0Eh
RPT11
Alarm1 10 Seconds
Alarm1 Seconds
Al1 Sec
00-59
0Fh
WDF
AF1
AF2(1)
BL
TF
OF
0
0
Flags
10h
Timer Countdown Value
Timer Value
11h
TE
TI/TP
TIE
0
0
0
TD1
TD0
Timer Control
12h
ACS
AC6
AC5
AC4
AC3
AC2
AC1
AC0
Analog
Calibration
13h
RS3
RS2
RS1
RS0
0
0
AL2E
OTP
SQW
14h
0
0
0
Al2 10M
Alarm2 Month
SRAM/Al2 Month
01-12
15h
RPT24
RPT25
AI2 10 Date
Alarm2 Month
SRAM/Al2 Date
01-31
16h
RPT23
0
AI2 10 Hour
Alarm2 Date
SRAM/Al2 Hour
00-23
17h
RPT22
Alarm2 10 Minutes
Alarm2 Minutes
SRAM/Al2 Min
00-59
18h
RPT21
Alarm2 10 Seconds
Alarm2 Seconds
SRAM/Al2 Sec
00-59
19h-
1Fh
User SRAM (7 Bytes)
SRAM
0 = Must be set to zero
OFIE = Oscillator Fail Interrupt Enable
ABE = Alarm in battery back-up enable Bit
OTP = OTP Control Bit
A1IE = Alarm1 interrupt enable bit
RB0-RB2 = Watchdog Resolution Bits
AC0-AC6 = analog calibration bits
RPT11-RPT15 = Alarm 1 Repeat Mode Bits
ACS = analog calibration sign bit
RPT21-RPT25 = Alarm 2 Repeat Mode Bits
AF1, AF2 = Alarm flag
RS0-RS3 = SQW Frequency
AL2E = Alarm 2 enable bit
SQWE = Square Wave Enable
BL = Battery Low Bit
SRAM/ALM2 = SRAM/Alarm 2 Bit
BMB0-BMB4 = Watchdog Multiplier Bits
ST = Stop Bit
CB0, CB1 = Century Bits
TD0, TD1 = Timer Frequency Bits
DC0-DC4 = Digital Calibration Bits
TE = Timer Enable Bit
DCS = Digital Calibration Sign Bit
TF = Timer Flag
FT = Frequency Test Bit
TI/TP = Timer Interrupt or Pulse
HT = Halt Update Bit
TIE = Timer Interrupt Enable
OF = Oscillator Fail Bit
WDF = Watchdog flag
OUT= Output level



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