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TMS570LS3137 数据表(PDF) 134 Page - Texas Instruments |
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TMS570LS3137 数据表(HTML) 134 Page - Texas Instruments |
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134 / 159 page  TMS570LS3137 SPNS162. – SEPTEMBER 2011 www.ti.com 5.6 Controller Area Network (DCAN) The DCAN supports the CAN 2.0B protocol standard and uses a serial, multimaster communication protocol that efficiently supports distributed real-time control with robust communication rates of up to 1 megabit per second (Mbps). The DCAN is ideal for applications operating in noisy and harsh environments (e.g., automotive and industrial fields) that require reliable serial communication or multiplexed wiring. 5.6.1 Features Features of the DCAN module include: • Supports CAN protocol version 2.0 part A, B • Bit rates up to 1 MBit/s • The CAN kernel can be clocked by the oscillator for baud-rate generation. • 64 mailboxes on each DCAN • Individual identifier mask for each message object • Programmable FIFO mode for message objects • Programmable loop-back modes for self-test operation • Automatic bus on after Bus-Off state by a programmable 32-bit timer • Message RAM protected by parity • Direct access to Message RAM during test mode • CAN Rx / Tx pins configurable as general purpose IO pins • Message RAM Auto Initialization • DMA support For more information on the DCAN see the TMS570LS31X/21X Technical Reference Manual (SPNU499). 5.6.2 Electrical and Timing Specifications Table 5-17. Dynamic Characteristics for the DCANx TX and RX pins Parameter MIN MAX Unit td(CANnTX) Delay time, transmit shift register to CANnTX pin(1) 15 ns td(CANnRX) Delay time, CANnRX pin to receive shift register 5 ns (1) These values do not include rise/fall times of the output buffer. 134 Peripheral Information and Electrical Specifications Copyright © 2011, Texas Instruments Incorporated Submit Documentation Feedback focus.ti.com: TMS570LS3137 |
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