Motorola MPC533 Reference Manual page 688

Features
16.1 Features
Each TouCAN module provides these features:
• Full implementation of CAN protocol specification, version 2.0 A/B
— Standard data and remote frames (up to 109 bits long)
— Extended data and remote frames (up to 127 bits long)
— Zero to eight bytes data length
— Programmable bit rate up to one Mbit/sec
• 16 Rx/Tx message buffers of 0-8 bytes data length
• Content-related addressing
• No read/write semaphores required
• Three programmable mask registers: global (for message buffers 0 through 13),
special for message buffer 14, and special for message buffer 15
• Programmable transmit-first scheme: lowest ID or lowest buffer number
• "Time stamp", based on 16-bit free-running timer
• Global network time, synchronized by a specific message
• Programmable I/O modes
• Maskable interrupts
• Independent of the transmission medium (external transceiver is assumed)
• Open network architecture
• Multimaster concept
• High immunity to EMI
• Short latency time for high-priority messages
• Low power sleep mode with programmable wakeup on bus activity
• Outputs have open drain drivers
• Support for SAE J1939 and SAE J2284
• Support for DeviceNet™ and Smart Distributed System
16.2 External Signals
The TouCAN module interface to the external CAN bus consists of two signals: CNTX0
which transmits serial data, and CNRX0 which receives serial data.
16-2
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
MPC533 Reference Manual MOTOROLA