Motorola CAN Features

The basic features of the MSCAN are as follows:
• Modular architecture
• Implementation of the CAN protocol – Version 2.0A/B
– Standard and extended data frames
– 0–8 bytes data length
– Programmable bit rate up to 1 Mbps1
– Support for remote frames
• 4 receive buffers with FIFO storage scheme
• 3 transmit buffers with internal prioritization using a ‘local priority’ concept
• Flexible maskable identifier filter supports two full size extended identifier filters (two 32-bit) or four 16-bit filters or eight 8-bit filters
• Programmable wake-up functionality with integrated low-passfilter
• Programmable loop back mode supports self-test operation
• Programmable listen-only mode for monitoring of CAN bus
• Separate signalling and interrupt capabilities for all CAN receiver and transmitter error states (Warning, Error Passive, Bus-Off)
• Programmable MSCAN clock source either system clock or crystal oscillator output
• Internal timer for time-stamping of received and transmitted messages
• Three low power modes: Sleep, Power Down and MSCAN Enable
• Global initialization of configuration registers

1. Depending on the actual bit timing and the clock jitter of the PLL.