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Original question:

DS90UB914A-Q1: Want to understand what BIST is actually doing

DS90UB962-Q1: BIST doubt

xu shi
Prodigy 170 points
Part Number: DS90UB962-Q1


Hi, I want to use the BIST mode in ub962，and have some doubt:

1. to enable the BIST, only need to set reg 0xB3 to 1?

2. how long will the test last?  or only stop when set 0xB3 to zero?

3.how to view the test result? to read reg 0x57? there are four cameras connect to ub962 , why there is only one reg to read? 

4. if the reg 0x57 is 0 , do it indicate the test pass? and if not zero, do it indicate the test fail?

  • 0
    TI__Mastermind 30515 points

    Xu,

    1. yes. this bit setting run the BISI test mode.

    2. dependent on your system request, such as BER, line rate, confidence, etc.

    3. yes you can read the BIST error counter after you disable the BIST test. every time, only one channel can work at BIST, you can check the reg.0x4c to select the assigned channel.

    4.yes.

    regards.

    Steven