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DS90UB925Q-Q1: Question consultation of using with DS90UB928Q1

WU YISYUAN
Expert 2165 points
Part Number: DS90UB925Q-Q1
Other Parts Discussed in Thread: DS90UB928Q-Q1

Hi team,

I used DS90UB925Q1 with DS90UB928Q1 have some question need help.

1. If DS90UB925Q-Q1 and DS90UB928Q-Q1 are used together, how does GPIO correspond?

2.Are these serializer without SPI communication?

3.When the DS90UB925Q-Q1 is used together with the DS90UB928Q-Q1, does the 925 have to use 24 bits?

thanks.

  • 0
    TI__Mastermind 21685 points
    Hello,

    1. Please refere DS90UB928Q-Q1 Data Sheet section 8.3.15. There's a Table 1 that captures 925 GPIO enable and configuration.

    2. No SPI communication supported in 925 or 928

    3. If the DS90UB928Q-Q1 is paried with DS90UB925Q-Q1 serializer, the devices must be configured into 18-bit mode to allow usage of GPIO pins on the serializer. See UB928 DS Section 8.3.15.1

    thanks,
    Vishy