參數(shù)資料
型號: S-35399A03-J8T2G
元件分類: 時鐘/數(shù)據(jù)恢復及定時提取
英文描述: 1 TIMER(S), REAL TIME CLOCK, PDSO8
封裝: LEAD FREE, SOP-8
文件頁數(shù): 52/53頁
文件大小: 472K
代理商: S-35399A03-J8T2G
2-WIRE REAL-TIME CLOCK
S-35399A03
Rev.2.0_00
Seiko Instruments Inc.
8
Configuration of Data Communication
1. Configuration of data Communication
For data communication, the master device in the system generates a start condition for the S-35399A03. Next, the
master device transmits 4-bit device code “0110” or “0111”, and 3-bit command and 1-bit Read/Write command to the
SDA bus. After that, output or input is performed from B7 of data. If data I/O has been completed, finish communication
by inputting a stop condition to the S-35399A03. The master device generates an acknowledgment signal for every
1-byte. Regarding details, refer to “ Serial Interface”. Device code “0110” is compatible with the SII S-35390A/392A as
software. Regarding details, refer to “2. Configuration of command”.
Command
0
1
0 / 1
C2
C1
C0
R / W
Device code
ACK
Read/Write bit
Acknowledgment bit
B7
B6
B5
B4
B3
B2
B1
B0
ACK
Start condition
Stop condition
1-byte data
STA
STP
Figure 8 Data Communication
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