M41T00AUDD1E View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
M41T00AUDD1E Datasheet PDF : 42 Pages
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M41T00AUD
M41T00AUD clock operation
Table 4. M41T00AUD register map(1)
Bit
Addr
Register name Range
D7
D6
D5
D4
D3
D2
D1
D0
00h
ST
01h
0(2)
10 seconds
10 minutes
Seconds
Minutes
Seconds
Minutes
00-59
00-59
02h CEB
CB
03h
0
Y(3)
10 hours
Y
Y
Hours (24 hour format)
0
Day of week
Century/hours 0-1/00-23
Day
1-7
04h
0
0
10 date
Date: day of month
Date
01-31
05h
0
0
0
10M
Month
Month
01-12
06h
10 years
Year
Year
00-99
07h OUT
FT
S
<------------- Calibration ------------>
Cal/control
08h 256/512 TONE TCH2 MUTE
<--------------GAIN ------------>
Audio
09h
HT TCFE OF OFIE TCHE3 TCHE2 TCHE1 TCHE0 Control2
1. Key:
S = SIGN bit
FT = Frequency test bit
ST = STOP bit
OF = Oscillator fail detect flag
OFIE = Oscillator fail interrupt enable
OUT = Logic output
TCHE3:TCHEO = Trickle charge enable bits
TCFE = Trickle charge FET bypass enable
HT = Halt bit
TCH2 = Trickle charge enable #2
TONE = Tone on/off select
CB = Century bit
CEB = Century enable bit
256/512 = Tone frequency select bit
2. 0 bits always read as 0. Writing them has no effect.
3. Y bits are indeterminate at power-up. These are the factory test mode bits, and must be written to 0.
Doc ID 13480 Rev 5
19/42
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