MCF51AC128AVPUE データシートの表示（PDF） - Freescale Semiconductor

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MCF51AC128AVPUE

MCF51AC256 ColdFire Microcontroller

Freescale Semiconductor 

MCF51AC256 Family Configurations

— Multi-master operation

— Software programmable for one of 64 different serial clock frequencies

— Interrupt driven byte-by-byte data transfer

— Arbitration lost interrupt with automatic mode switching from master to slave

— Calling address identification interrupt

— Bus busy detection

— 10-bit address extension

• Controller area network (CAN)

— Implementation of the CAN protocol — Version 2.0A/B

– Standard and extended data frames

– Zero to eight bytes data length

– Programmable bit rate up to 1 Mbps

– Support for remote frames

— Five receive buffers with FIFO storage scheme

— Three transmit buffers with internal prioritization using a “local priority” concept

— Flexible maskable identifier filter supports two full-size (32-bit) extended identifier filters, four

16-bit filters, or eight 8-bit filters

— Programmable wakeup functionality with integrated low-pass filter

— Programmable loopback mode supports self-test operation

— Programmable listen-only mode for monitoring of CAN bus

— Programmable bus-off recovery functionality

— Separate signalling and interrupt capabilities for all CAN receiver and transmitter error states

(warning, error passive, bus-off)

— Internal timer for time-stamping of received and transmitted messages

• Serial communications interfaces (SCI)

— Full-duplex, standard non-return-to-zero (NRZ) format

— Double-buffered transmitter and receiver with separate enables

— Programmable baud rates (13-bit modulo divider)

— Interrupt-driven or polled operation

— Hardware parity generation and checking

— Programmable 8-bit or 9-bit character length

— Receiver wakeup by idle-line or address-mark

— Optional 13-bit break character generation / 11-bit break character detection

— Selectable transmitter output polarity

• Serial peripheral interfaces (SPI)

— Master or slave mode operation

— Full-duplex or single-wire bidirectional option

— Programmable transmit bit rate

— Double-buffered transmit and receive

— Serial clock phase and polarity options

MCF51AC256 ColdFire Microcontroller Data Sheet, Rev.4

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Freescale Semiconductor

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