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DS90UB960-Q1: How to disable Channel Monitor Loop-Through Output Driver

victorien vedrine
Prodigy 10 points
Part Number: DS90UB960-Q1

Hello,

I'm developing a script to test DS90UB960 and I would like to enable then disable Channel Monitor Loop-Through Output Driver.

On datasheet, chapter 7.4.8, page 33, there is the description on how to enable the output. but I don't find anything on the way to disable it.

please could you explain me how to do ?

In addition, where can I find the description of Indirect Access Registers for FPD3 RX xxxx Reserved Registers ?

Best regards.

  • +1
    TI__Mastermind 26220 points

    Hello,

    Thank you for your question. To disable CMLOUT you will need to run the following script to update the necessary registers.

    WriteI2C(0xB0,0x14) # FPD-Link III RX Shared Reserved Registers

    WriteI2C(0xB1,0x00) # Offset 0

    WriteI2C(0xB2,0x00) # Disable loop through driver

    Reserved registers do not normally include descriptions in the datasheet because these registers are not recommended to be changed outside of the examples listed in the datasheet. Any necessary indirect access register reads/writes are explained in the corresponding datasheet sections or script comments. If you have specific questions about any of the register settings/example script functions, I can clarify what is being done.

    Regards,

    Darrah