PXD20RM Datasheet, PDF (1032/1628 Pages) Freescale Semiconductor, Inc – PXD20 Microcontroller

27.13.1 Master node
Header
Data TX
Checksum TX
Configure ID
DFL, Data buffer
Set HTRQ
DIR = 1
DTF set
TXI Interrupt
Figure 27-57. Programming consideration: master node, transmitter
Header
Data RX
Checksum RX
Configure ID, DFL
Set HTRQ
DIR = 0
and
DDRQ = 0
DRF set
RXI Interrupt
Figure 27-58. Programming consideration: master node, receiver
Header
Configure ID
DFL, Data buffer
Set HTRQ
DIR = 1
Data TX
BEF set
ERRI Interrupt
IOBE = 1
Header
Data TX
Checksum TX
Configure ID
DFL, Data buffer
Set HTRQ
DIR = 1
BEF set
IOBE = 0
ERR Interrupt
DTF set
TX Interrupt
Figure 27-59. Programming consideration: master node, transmitter, bit error
Header
Data RX
Checksum RX
Configure ID, DFL
Set HTRQ
DIR = 0
and
DDRQ = 0
CEF set
ERR Interrupt
Figure 27-60. Programming consideration: master node, receiver, checksum error
27-76
PXD20 Microcontroller Reference Manual, Rev. 1
Preliminary—Subject to Change Without Notice
Freescale Semiconductor