Panasonic MN101L Series User Manual page 452

Chapter 13
Serial Interface
Slave Transmission Timing
SDAn
SCLn
SCnTIRQ
IIC3STRT
IIC3ADD_ACC
IIC3BUSBSY
(1) Detect start condition
(2) Receive address data (slave address + R/W bit)
(3) Transmit ACK bit
(4) Set data to TXBUFn in interrupt handler
(5) Transmit data
(6) Receive ACK bit
(7) Set data to TXBUFn in interrupt handler
(8) Transmit data
XIII - 64 IIC Communication
(1) (2)
address data
reception
. .
1 2
Figure:13.5.9 Slave Transmission Timing
(3) (4)
8-bit transmission
8 ACK 1
Set data to TXBUFn
(7)
(5) (6)
. .
2 8
ACK
Set data to TXBUFn
(8)