MC908AP32CFBE Datasheet, PDF (247/324 Pages) Freescale Semiconductor, Inc – The following revision history table summarizes changes contained in this document. For your convenience, the page number designators have been linked to the appropriate location.

14.8.6 Process Call
SMBus Protocols with PEC and without PEC
START Slave Address W ACK Command Code ACK Data Byte Low ACK Data Byte High ACK
START Slave Address R ACK Data Byte Low ACK Data Byte High NAK
(a) Process Call
STOP
START Slave Address W ACK Command Code ACK Data Byte Low ACK Data Byte High ACK
START Slave Address R ACK Data Byte Low ACK Data Byte High ACK STOP
PEC
(b) Process Call with PEC
Figure 14-18. Process Call
14.8.7 Block Read/Write
NAK STOP
START Slave Address W ACK Command Code ACK Byte Count = N ACK Data Byte 1 ACK
Data Byte 2 ACK
(a) Block Read
Data Byte N ACK STOP
START Slave Address W ACK Command Code ACK Byte Count = N ACK Data Byte 1 ACK
Data Byte 2 ACK
(b) Block Read with PEC
Data Byte N ACK
PEC
ACK STOP
START Slave Address W ACK Command Code ACK START Slave Address R ACK Byte Count = N ACK
Data Byte 1 ACK Data Byte 2 ACK
(c) Block Write
Data Byte N NAK STOP
START Slave Address W ACK Command Code ACK START Slave Address R ACK Byte Count = N ACK
Data Byte 1 ACK Data Byte 2 ACK
(d) Block Write with PEC
Data Byte N ACK
PEC
NAK STOP
Figure 14-19. Block Read/Write
MC68HC908AP Family Data Sheet, Rev. 4
Freescale Semiconductor
245