Epson RX801SJ Applications Manual page 38

RX8010 SJ
13.8.7. The example of the communication wave pattern
1) Address specification read sequence
When write in A5h for address 20h:
SCL
SDA
Slave address + 0(Write)
START
2) Address specification read sequence
When read A5h from address 20h:
SCL
SDA
Slave address + 0(Write)
STRAT
Address (20h) Write data
Write in A5h
ACK signal from RX8010
∗CPU release the SDA line
Slave address + 1(Read)
Address (20h) RESTRAT
ACK signal from RX8010
∗CPU release the SDA line
Page − 34
STOP
STOP
Data of Address 20h
A5h read
ACK from CPU
ETM37E-06