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DS90UB953-Q1: General status register

Jura Ivanovic
Prodigy 30 points

Part Number: DS90UB953-Q1

Hi,

can somebody explain how to clear CRC_ERR, LINK_LOST_FLAG and BIST_CRC_ERR bits in the general status register. There are some inconsistencies in the document.

This is from the DS:

Back Channel CRC error detected
This bit is set when the back channel errors detected when BC LINK DET is asserted. This bit is cleared upon read of CRC_ERR_CLR register.

Now, CRC_ERR_CLR register does not exist. What exists is the CRC_ERR_CLR bit in the BC_CTRL register. However, this bit is described as:

3   CRC_ERR_CLR   (R/W)/SC   0x0   Clear CRC error 0: Disable clear 1: Enable clear

So do I need to write this bit, read or what?

Similar is for the other two status bits mentioned above.

Thanks in advance,

Jura

  • 0
    TI__Genius 11340 points
    Hi Jura,

    If you see the bit CRC_ERR set to 1, you can clear it by writing CRC_ERR_CLR bit to 1 (Enable clear). Both the CRC_ERR and CRC_ERR_CLR bits will reset to 0 once you set CRC_ERR_CLR bit to 1.

    This principle applies to the other two status bits.

    Best,
    Jiashow