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DS90UB954-Q1: 0x55 0x56 parity error

Delaney Berger
Intellectual 2475 points
Part Number: DS90UB954-Q1

Hi Team, 

Quick Question: 

Could you help me understand if the parity error counter (0x55, 0x56 on the DES) refers to the number of bits received in error or the number of packets received in error? 

 

What I’m trying to understand is - if the registers show X parity errors, how many bad bits have I just received?

To clarify: 

I want to know if the parity error counter increments based on a bit received in error or a packet received in error.
if I have a packet consisting of 8 bits and I receive three in error, does that mean the parity error count is one or three?

Thank you, 
Delaney

  • 0
    TI__Mastermind 28510 points

    Hi Delaney,

    The UB954 has video buffers at each RX Port, which stores up to 2 lines of video data, which are CSI-2 long packets. Each packet will be checked for errors, including parity errors, and added to the parity counter. The parity counter register is cleared on each read, so if the registers show X parity errors, then that is the amount of parity errors that were counted since the last read of the register.

    Best,

    Justin Phan