參數(shù)資料
型號: RV5C387A-E2
廠商: RICOH COMPANY LTD
元件分類: XO, clock
英文描述: I2C-bus Real-Time Clock ICs with Voltage Monitoring Function
中文描述: 0 TIMER(S), REAL TIME CLOCK, PDSO10
封裝: 4 X 2.90 MM, 1.20 MM HEIGHT, SSOP-10
文件頁數(shù): 21/42頁
文件大?。?/td> 363K
代理商: RV5C387A-E2
PRELIMINARY RV5C387A
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- 21 -
14.1.3.
Data Transmission Write Format in the RV5C387A
Although the I
2
C-Bus standard defines a transmission format for the slave allocated for each IC, transmission
method of address information in IC is not defined. The RV5C387A transmits data the internal address
pointer (4bit) and the Transmission Format Register (4bit) at the 1byte next to one which transmitted a Slave
Address and a write command. For write operation only one transmission format is available and (0000) is
set to the Transmission Format Register. The 3byte transmits data to the address specified by the internal
address pointer written to the 2byte. Internal address pointer setting are automatically incremented for
4byte and after. Note that when the internal address pointer is Fh, it will change to 0h on transmitting the
next byte.
1
A
S
0
A
Data
A
Data
A P
Example of data writing (When writing to internal address Eh to Fh)
Master to slave
Slave to master
S
Start Condition
P
Stop Condition
A
A
/A
Acknowledge signal
Address
Pointer
Eh
R/W=0(Write)
Slave Address
(0110010)
1
1
0
0
0
0
0
0 0 0
0
1 1
1
Transmission
Format
Register
0h
Writing of data to the
internal address Fh
Writing of data to the
internal address Eh
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