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MC33905D Datasheet, PDF (34/766 Pages) Freescale Semiconductor, Inc – SBC Gen2 with CAN High Speed and LIN Interface | |||
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Overview
â Memory-based flexible descriptor rings
â Media-independent interface (MII) to transceiver (PHY)
⢠FlexCAN 2.0B Module
â Includes all existing features of the Freescale TouCAN module
â Full implementation of the CAN protocol specification version 2.0B
â Standard data and remote frames (up to 109 bits long)
â Extended data and remote frames (up to 127 bits long)
â 0â8 bytes data length
â Programmable bit rate up to 1 Mbit/sec
â Up to 16 message buffers (MBs)
â Configurable as receive (Rx) or transmit (Tx)
â Support standard and extended messages
â Unused message buffer (MB) space can be used as general-purpose RAM space
â Listen-only mode capability
â Content-related addressing
â No read/write semaphores
â Three programmable mask registers
â Global (for MBs 0-13)
â Special for MB14
â Special for MB15
â Programmable transmit-first scheme: lowest ID or lowest buffer number
â âTime stampâ based on 16-bit free-running timer
â Global network time, synchronized by a specific message
â Programmable I/O modes
â Maskable interrupts
⢠Three universal asynchronous/synchronous receiver transmitters (UARTs)
â 16-bit divider for clock generation
â Interrupt control logic
â Maskable interrupts
â DMA support
â Data formats can be 5, 6, 7, or 8 bits with even, odd, or no parity
â Up to 2 stop bits in 1/16 increments
â Error-detection capabilities
â Modem support includes request-to-send (URTS) and clear-to-send (UCTS) lines for two
UARTs
â Transmit and receive FIFO buffers
⢠I2C module
â Interchip bus interface for EEPROMs, LCD controllers, A/D converters, and keypads
â Fully compatible with industry-standard I2C bus
â Master or slave modes support multiple masters
â Automatic interrupt generation with programmable level
MCF5282 and MCF5216 ColdFire Microcontroller Userâs Manual, Rev. 3
1-2
Freescale Semiconductor
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