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

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MCF5282 User’s Manual

MOTOROLA

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Motorola MCF5281 user manual MCF5282 Key Features