S-35199A01 Datasheet, PDF (11/54 Pages) Seiko Instruments Inc – 3-WIRE REAL-TIME CLOCK

Rev.1.0_00
3-WIRE REAL-TIME CLOCK
S-35199A01
„ Configuration of Data Communication
1. Configuration of data communication
After setting the CS pin “H”, transmit the 4-bit code “0110” or “0111”, 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”. Code
“0110” is compatible with the SII S-35190A/192A as software. Regarding details, refer to “2. Configuration of
command”.
Code
Command
Read/Write bit
0
1
1
0/1
C2
C1
C0 R / W
1-byte data
B7
B6
B5
B4
B3
B2
B1
B0
Figure 13 Data Communication
Seiko Instruments Inc.
11