S9S12G128F0CLF Datasheet, PDF (512/1158 Pages) Freescale Semiconductor, Inc – MC9S12G Family Reference Manual

Freescale’s Scalable Controller Area Network (S12MSCANV3)
16.4.2 Message Storage
CAN Receive / Transmit Engine
MSCAN
Rx0
Rx1
Rx2
Rx3
Rx4
Receiver
Memory Mapped I/O
RXF
CPU bus
Tx0
TXE0
MSCAN
PRIO
Tx1
TXE1
PRIO
Tx2
TXE2
CPU bus
Transmitter
PRIO
Figure 16-39. User Model for Message Buffer Organization
The MSCAN facilitates a sophisticated message storage system which addresses the requirements of a
broad range of network applications.
16.4.2.1 Message Transmit Background
Modern application layer software is built upon two fundamental assumptions:
MC9S12G Family Reference Manual, Rev.1.10
512
Freescale Semiconductor