S912XHZ512F1VAG Datasheet, PDF (543/978 Pages) Freescale Semiconductor, Inc – Covers MC9S12XHZ384, MC9S12XHZ256

14.4
Functional Description
Chapter 14 Freescale’s Scalable Controller Area Network (S12MSCANV3)
14.4.1 General
This section provides a complete functional description of the MSCAN.
14.4.2 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 14-39. User Model for Message Buffer Organization
MC9S12XHZ512 Data Sheet Rev. 1.06
Freescale Semiconductor
543