CRC7 Input bits in Command and Response

Discussion in 'VHDL' started by beky4kr, May 24, 2008.

  1. beky4kr

    beky4kr Guest

    Can someone confirm the SDIO CRC7 bits input for the 48 bits command
    and response and 136 response.

    For case 1 and 2 the CRC7 is calculated on 40 bits starting from the
    very first bit - the start bit. For case 3 the first two bits (start
    and transmission bits) and the six reserved ones, which follow, are
    skipped. Than 120 bits are fed to the CRC7 module.

    The issue explained in detail at
    http://bknpk.no-ip.biz/SDIO/CRC7_cmd_rsp_input_bits.html
    http://bknpk.no-ip.biz/SDIO/CRC7.html
     
    beky4kr, May 24, 2008
    #1
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