Panasonic MN101L Series User Manual page 454

Chapter 13
Serial Interface
Slave Reception Timing (Stop Condition Detection)
(1)
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 dummy data to TXBUFn in interrupt handler
(5) Receive data
(6) Transmit ACK bit
(7) Set dummy data to TXBUFn in interrupt handler
(8) Detect stop condition
XIII - 66 IIC Communication
(2)
address data
reception
. .
1 2
Figure:13.5.11 Slave Reception Timing (Stop Condition Detection)
(3) (4)
8 ACK
Set dummy data to TXBUFn
(5) (6)
8-bit reception
. .
1 2 8
ACK
Set dummy data to TXBUFn
(7) (8)