Panasonic MN101L Series

Chapter 13
Serial Interface
IIC Communication XIII - 65
 Slave Transmission Timing (NACK Reception)
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
12
. .
. .
8 ACK 1 2 8
Set data to TXBUFn
(1) (3) (4)(2) (6)(5) (7)
NACK
address data
reception
8 bits transmission
IIC3BUSBSY
IIC3STRT
IIC3ADD_ACC
SDAn
SCLn
SCnTIRQ