S-35190A Datasheet, PDF (9/53 Pages) Seiko Instruments Inc – 3-WIRE REAL-TIME CLOCK

Rev.2.4_00
3-WIRE REAL-TIME CLOCK
S-35190A
„ Configuration of Data Communication
1. Configuration of data communication
After setting the CS pin “H”, transmit the 4-bit fixed code “0110”, after that, transmit a 3-bit command and 1-bit Read/Write
command. Next, data is output or input from B7. Regarding details, refer to “„ Serial Interface”.
Fixed code
Command
Read/Write bit
0
1
1
0
C2
C1
C0 R / W
1-byte data
B7
B6
B5
B4
B3
B2
B1
B0
Figure 13 Data Communication
Seiko Instruments Inc.
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