Microcontroller User's Manual

1-2 MCF5282 User’s Manual MOTOROLA
MCF5282 Key Features
• Power management
— Fully-static operation with processor sleep and whole chip stop modes
— Very rapid response to interrupts from the low-power sleep mode (wake-up
feature)
— Clock enable/disable for each peripheral when not used
• Fast Ethernet Controller (FEC)
— 10BaseT capability, half- or full-duplex
— 100BaseT capability, half- or limited-throughput full-duplex
— On-chip transmit and receive FIFOs
— Built-in dedicated DMA controller
— Memory-based flexible descriptor rings
— Media-independent interface (MII) to transceiver (PHY)
• FlexCAN 2.0B Module
— Includes all existing features of the Motorola TOUCAN module
— Full implementation of the CAN protocol specification version 2.0B
– Standard data and remote frames (up to 109 bits long)
– Extended data and remote frames (up to 127 bits long)
– 0–8 bytes data length
– Programmable bit rate up to 1 Mbit/sec
— Up to 16 message buffers (MBs)
– Configurable as receive (Rx) or transmit (Tx)
– Support standard and extended messages
— Unused message buffer (MB) space can be used as general-purpose RAM space
— Listen-only mode capability
— Content-related addressing
— No read/write semaphores
— Three programmable mask registers
– Global (for MBs 0-13)
– Special for MB14
– Special for MB15
— 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