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DS90UB948-Q1: DS90UB948 register 0x3b description?

yixiang zhong
Prodigy 10 points
Part Number: DS90UB948-Q1

Black screen appears during use, soft reset 948, can be restored.

Only register 0x3b values are different when comparing normal and abnormal.

Is there a description of register 0x3b?

  • 0
    TI__Guru** 107980 points
    Hello Yixang,

    reg 0x3B is showing the status of the AEQ. If you see different values in this register and sometimes higher values this means either your board/ link is not optimal or the the power-up sequencing is not correct.
    Does digital reset helps always? if yes then the power-up sequencing is the issue. please follow the recommendation in the D/S.