Panasonic MN101L Series User Manual page 453

Slave Transmission Timing (NACK Reception)
(1)
SDAn
SCLn
SCnTIRQ
IIC3STRT
IIC3ADD_ACC
IIC3BUSBSY
Figure:13.5.10 Slave Transmission Timing (NACK Reception)
(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 NACK bit
(7) Release SDAn and SCLn
(2) (3)
address data
reception
. .
1 2 8 ACK
Set data to TXBUFn
(4) (5)
8 bits transmission
. .
1 2
Serial Interface
(6) (7)
8 NACK
IIC Communication
Chapter 13
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