S-35392A-I8T1G Seiko Instruments, S-35392A-I8T1G Datasheet - Page 13

• Manufacturer Part Number: S-35392A-I8T1G
• Description: Real Time Clock 2-wire Real Time Clock
• Manufacturer: Seiko Instruments

Specifications of S-35392A-I8T1G

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Rev.2.0
3. Status register 2
B0 : TEST
B1 : INT2AE, B2 : INT2ME, B3 : INT2FE
B4 : SC2
B5 : INT1AE, B6 : INT1ME, B7 : INT1FE
Status register 2 is a 1-byte register that is used to display and set various modes. The bit configuration is shown below.
*1. Don’t care (Both of 0 and 1 are acceptable).
This is a test flag for SII. Be sure to set this flag to “0” in use. If this flag is set to “1”, be sure to initialize to set “0”.
These bits are used to select the output mode for the
alarm 2 interrupt, access the INT2 register after setting the alarm interrupt mode.
This is an SRAM type register that can be freely set by users.
To use the alarm 1 function, access the INT register 1 after setting INT1AE = “1”, INT1ME = “0”, and INT1FE = “0”.
In other settings than this, these flags are disable for setting the alarm time (free registers).
INT2AE
_00
−
−
−
INT1FE
0
1
*1
*1
*1
R/W
B7
INT1ME
INT2ME
R/W
B6
0
0
1
1
0
INT1AE
R/W
B5
Table 10 Output Modes for
INT2FE
Figure 11 Status Register 2
0
1
0
1
0
Seiko Instruments Inc.
R/W
SC2
B4
No interrupt
Output of user-set frequency
Per-minute edge interrupt
Minute-periodical interrupt 1 (50% duty)
Alarm 2 interrupt
INT2FE
R/W
INT
B3
2
pin. Table 10 shows how to select the mode. To use
INT
R/W: Read/Write
INT2ME
R/W
2
B2
INT
Pin
2
Pin Output Mode
2-WIRE REAL-TIME CLOCK
INT2AE
R/W
B1
TEST
R/W
B0
S-35392A
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