DS90UB914A-Q1: General Status Register (0x1C)

Kenichiro

Part Number: DS90UB914A-Q1

[ DS90UB914A-Q1 ] General Status Register (0x1C)

Hi,

Can you please help me to clarify the function of general status bits (0x1C) of DS90UB914A-Q1?

<Q1>:
We have three indicators such as Parity Error[2], Signal Detect[1] and Lock[0]. Do these detect the failure independently?

If we assume the scenario of camera cable disconnect, "0: Serial input not detected", "0: De-Serializer not locked" and "1: "Parity Error detected" are reported at the almost same time, because we don't have valid input data. Correct?

<Q2>:
Do you have any information that how these status bits behave if failure (such as cable disconnect) happen during Lock time (tDDLT)?

Thanks,
Ken

over 5 years ago

0 Palaniappan Manickam over 5 years ago

TI__Genius 10475 points

Ken,
The parity error, signal detect and lock all indicate different things and they are all independent. The signal detect is detecting if there is any signal present at the FPD-Link input or not based on frequency input detection (typically used to detect cable fault condition).
If cable disconnect happens before lock is detected, the lock may not be acquired properly and it is recommended to perform PDB reset or digital reset after cable is plugged in.

0 Kenichiro over 5 years ago in reply to Palaniappan Manickam

Mastermind 9165 points

Thanks, Palaniappan!

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DS90UB914A-Q1: General Status Register (0x1C)

[ DS90UB914A-Q1 ] General Status Register (0x1C)