DS90UB925Q-Q1: Register map

Youhei Miyaoka

Part Number: DS90UB925Q-Q1

Hi team,

My customer have connected GPIO0 and GPIO1 to their graphics processor (GP).

Could you please let me know which register and register bit can be used to read the GPIO

1) If GPIO is set as input …in this case, they want to reconfirm what is the value set by GP on the GPIO pin
2) If GPIO is set as output.

Regards,

Youhei MIYAOKA

over 1 year ago

0 Nikolas Antonucci over 1 year ago

TI__Mastermind 21465 points

Hello,

Youhei Miyaoka said:
1) If GPIO is set as input …in this case, they want to reconfirm what is the value set by GP on the GPIO pin

This is not something that is supported via the registers. What they can do is probe what is coming in from the graphics processor with a logic analyzer to confirm that it is what is expected.

Youhei Miyaoka said:
2) If GPIO is set as output.

This would be 0x0D[3] for GPIO0 and 0x0E[3] for GPIO1.

Best,

Nikolas

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DS90UB925Q-Q1: Register map