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RV-3029 Datasheet, PDF (26/67 Pages) MICORO CRYSTAL SWITZERLAND – DTCXO Temperature Compensated Real Time Clock
Micro Crystal
DTCXO Temperature Compensated Real Time Clock / Calendar Module
RV-3029
4.2.2.REGISTER RESET VALUES
Address
Page
Bit 7 - 3
Address
Hex
Bit 2 - 0
Control page
00000
000
00h
001
01h
010
02h
011
03h
100
04h
Function
Bit 7 Bit 6
Control_1
1
0
Control_INT
-
-
Control_INT Flag -
-
Control_Status EEbusy X
Control_Reset
-
-
Bit 5 Bit 4 Bit 3
0
1
1
-
0
0
-
0 1)
0
0 2)
0 3)
X
-
0
-
Bit 2
0
0
0
X
-
Bit 1 Bit 0
0
1
0
0
0
0
X
X
-
-
Clock page
000
001
010
011
00001
100
101
110
Alarm page
000
001
010
011
00010
100
101
110
Timer page
000
00011
001
Temperature page
00100
000
EEPROM User
000
00101
001
EEPROM Control page
000
001
00110
010
011
RAM page
000
:
00111
111
08h Seconds
09h Minutes
0Ah Hours
0Bh Days
0Ch Weekdays
0Dh Months
0Eh Years
-
X
X
X
X
X
X
X
-
X
X
X
X
X
X
X
-
X
X
X
X
X
X
X
-
-
X
X
X
X
X
X
-
-
-
-
-
X
X
X
-
-
-
X
X
X
X
X
-
X
X
X
X
X
X
X
10h Second Alarm
AE_S
X
X
X
X
X
X
X
11h Minute Alarm
AE_M
X
X
X
X
X
X
X
12h Hour Alarm
AE_H
X
X
X
X
X
X
X
13h Days Alarm
AE_D
-
X
X
X
X
X
X
14h Weekday Alarm AE_W
-
-
-
-
X
X
X
15h Months Alarm
AE_M
-
-
X
X
X
X
X
16h Year Alarm
AE_Y
X
X
X
X
X
X
X
18h Timer Low
19h Timer High
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
20h Temperature
X
X
X
X
X
X
X
X
28h EEPROM User
29h EEPROM User
2 bytes of EEPROM for user data
30h EEPROM Contr.
0 4)
0 4)
0 4)
0 4)
0 4)
0 4)
1 4)
0 4)
31h Xtal Offset
Factory setting: Xtal frequency deviation
32h Xtal Coef
Factory setting: Xtal temperature coefficient
33h Xtal T0
-
- Factory setting: Xtal T0 temperature
38h
:
User RAM
3Fh
8 bytes of RAM for user data
– bits labelled as – are not implemented.
X bits labelled as X are undefined at power-up and unchanged by subsequent resets.
1) SRF flag (bit 4 in register Control_INT Flag) will be set = “1” after a Self Recovery System Reset was executed.
2) PON flag (bit 5 in register Control_Status) will be set = “1” after a Power On Reset was executed.
3) SR flag (bit 4 in register Control_Status) will be set = “1” after a System or Self recovery Reset was executed.
4) EEPROM Control default data are set by factory; data might be reprogrammed by customer and will remain unchanged during power down or
any Reset executed.
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