DS90UB925Q-Q1: About interrupt INTB

Shuji Ishiwata

Part Number: DS90UB925Q-Q1
Other Parts Discussed in Thread: DS90UB926Q-Q1

Hi all,

I have questions about DS90UB925Q-Q1 and DS90UB926Q-Q1.

1) Could you let us know default value of 0xC6 in DS90UB925Q-Q1?

2) When INT is not used, the output of DS90UB925Q-Q1 is an internal pull-up and is output high.
Is our recognition correct?
The customer would like to let DS90UB925Q-Q1’s INTB pin be high in any case.

3) If DS90UB926Q-Q1 INTB_IN pin is not used, should we pull up to 3.3V with 4.7kΩ?

Best Regards,
Ishiwata

over 5 years ago

0 Casey McCrea over 5 years ago

TI__Guru** 103215 points

Hello Ishiwata,

1. Default is 0x00

2. INTB is an open drain pin so it needs to be pulled high externally as mentioned in the pin functions table

3. If this pin is unused on the deserializer side it can be either pulled low or high. It does not matter as the function only applies when interrupts are enabled through registers.

Best Regards,

Casey

0 Shuji Ishiwata over 5 years ago in reply to Casey McCrea

Mastermind 7825 points

Hello Casey,

Thank you for your answer.

Best Regards,
Ishiwata

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DS90UB925Q-Q1: About interrupt INTB