RV-3029 Datasheet, PDF (11/67 Pages) MICORO CRYSTAL SWITZERLAND – DTCXO Temperature Compensated Real Time Clock

Micro Crystal
DTCXO Temperature Compensated Real Time Clock / Calendar Module
RV-3029
3.2. CONTROL PAGE REGISTER FUNCTION
3.2.1.CONTROL_1 (address 00h…bits description)
Address
00h
Function
Control_1
Bit 7
Clk/Int
Bit 6
TD1
Bit 5
TD0
Bit 4
SROn
Bit 3
EERE
Bit 2
TAR
Bit 1
TE
Bit 0
WE
Bit
Symbol
7
Clk/Int
6
TD1
5
TD0
4
SROn
3
EERE
2
TAR
1
TE
0
WE
Value
0
1
00
01
10
11
0
1
0
1
0
1
0
1
0
1
Description
Applies INT function on CLKOUT pin
Applies CLKOUT function on CLKOUT pin
Select Source Clock for internal Countdown Timer
Disables Self Recovery function
Enables Self Recovery function
Disables automatic EEPROM refresh every hour
Enables automatic EEPROM refresh every hour
Disables Countdown Timer auto-reload mode
Enables Countdown Timer auto-reload mode
Disables Countdown Timer
Enables Countdown Timer
Disables 1Hz Clock Source for Watch
Enables 1Hz Clock Source for Watch
Reference
See section 4.9.
See section 4.4.
See section 4.8.
See section 4.3.
See section 4.4.
See section 4.4.
See section 4.7.
3.2.2.CONTROL_INT (address 01h…bits description)
Address
01h
Bit
7 to 5
4
3
2
1
0
Function
Control_INT
Symbol
unused
SRIE
V2IE
V1IE
TIE
AIE
Bit 7
X
Value
X
0
1
0
1
0
1
0
1
0
1
Bit 6
X
Bit 5
X
Bit 4
SRIE
Bit 3
V2IE
Bit 2
V1IE
Description
Unused
Disables Self-Recovery INT
Enables Self-Recovery INT
Disables VLOW2 INT; “Low Voltage 2 detection”
Enables VLOW2 INT; “Low Voltage 2 detection”
Disables VLOW1 INT; “Low Voltage 1detection”
Enables VLOW1 INT; “Low Voltage 1detection”
Disables Countdown Timer INT
Enables Countdown Timer INT
Disables Alarm INT
Enables Alarm INT
Bit 1
TIE
Bit 0
AIE
Reference
See section 4.8.
See section 4.1.2.
See section 4.1.2.
See section 4.4.1.
See section 4.5.1.
Bit positions labelled as “X” are not implemented and will return a “0” when read.
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