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DS80PCI402 / Register 0x05/0x06, Slave CRC bits

Toshiyuki
Mastermind 7075 points

Hi,

Could you please explain the function and how/when to use  the following resisters ?

1) ADR 0x05 [7:0]   Slave Mode CRC bits

2) ADR 0x06 [3]   Slave CRC

Best Regards,
kato

  • 0
    TI__Intellectual 1985 points

    Hi Kato,

    In order to write to the registers to configure the channel (i.e. VOD, DEM, and EQ), you must set Reg_0x06[3]=1. This disables CRC in slave mode. CRC checking is not needed in slave mode since an I2C master (i.e. FPGA or CPU) will program the device registers directly through normal SMBus/I2C protocol. Since we recommend disabling Slave CRC mode (Reg_0x06[3]=1), Register 0x05 is not used.

    Casey