Datasheet

Multi-Master IIC Interface (MMIIC)
MC68HC908AP Family Data Sheet, Rev. 4
244 Freescale Semiconductor
14.8.4 Write Byte/Word
Figure 14-16. Write Byte/Word
14.8.5 Read Byte/Word
Figure 14-17. Read Byte/Word
ACK
Command Code
ACK
Data Byte Low
ACK
Data Byte High
ACK
STOP
ACK
Command Code
ACK
Data Byte
ACK
STOP
ACK
STOP
PEC
START
Slave Address W
START
Slave Address W
ACK
Command Code
ACK
Data Byte
ACK
START
Slave Address W
(a) Write Byte Protocol
(b) Write Byte Protocol with PEC
(c) Write Word Protocol
ACK
Command Code
ACK
Data Byte Low
ACK
Data Byte High
ACK
ACK
STOP
PEC
START
Slave Address W
(d) Write Word Protocol with PEC
STOP
ACK
Command Code
ACK
Data Byte Low
ACK
Data Byte High
PECData Byte High
ACK
NAK
ACK NAK
START
ACK
Command Code
ACK
Data Byte Low
ACK ACK
START
STOP
START
Slave Address W
START
Slave Address W
Slave Address R
Slave Address R
(d) Read Word Protocol with PEC
(c) Read Word Protocol
(b) Read Byte Protocol with PEC
ACK
Command Code
ACK
Data Byte
NAK
ACK
Command Code
ACK
NAK
STOP
PEC
ACK
START
ACK
Data Byte
ACK
START
START
Slave Address W
START
Slave Address W
Slave Address R
Slave Address R
STOP
(a) Read Byte Protocol