DS90UB927Q-Q1: How to use Bidirectional Control Channel to control DS90UB928Q-Q1

daniel

Genius 5095 points

Part Number: DS90UB927Q-Q1
Other Parts Discussed in Thread: DS90UB928Q-Q1,

Hi Team,

We want to use Bidirectional Control Channel to control DS90UB928Q-Q1.

What register of DS90UB927Q-Q1 should be set or cooperate with DS90UB928Q-Q1 setting?

Thanks

over 7 years ago

0 Steven(Shenzhen) Shi over 7 years ago

TI__Mastermind 30515 points

Daniel,
you can enable I2C pass through setting in d/s.

best regards,
Steven

0 daniel over 7 years ago in reply to Steven(Shenzhen) Shi

Genius 5095 points

Hi Junqiang,

It is use I2C to control DS90UB928Q-Q1.
But pass through setting in 0x12 is related to I2S.
Could you please describe detailly about how to set?

Thanks

0 Steven(Shenzhen) Shi over 7 years ago in reply to daniel

TI__Mastermind 30515 points

Hi Daniel,
are you checking I2S?
to access UB928 registers from UB927, you can use I2C as below example:
Set I2C Pass-through (SER 0x03[1]1’b
Set SlaveID0 (SER 0x070x0A)
Set SlaveAlias (SER 0x080x0A)
Read/Write to Slave using address 0x0A

best regards,
Steven

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DS90UB927Q-Q1: How to use Bidirectional Control Channel to control DS90UB928Q-Q1