DS90UB933-Q1: I2C clock speed

Rajj

Prodigy 10 points

Part Number: DS90UB933-Q1

Tool/software:

What is the default I2C clock speed? How do we configure the I2C clock speed to 400kHz or 100kHz?

2 months ago

0 Carter Langston 2 months ago

TI__Intellectual 800 points

Hello Rajj,

The I2C clock speed is dependent on your SoC parameters. Our device supports both standard and fast modes.

Best,

Carter Langston

0 Rajj 2 months ago in reply to Carter Langston

Prodigy 10 points

Thanks Carter for the reply!

If the SoC needs to change the Serializer clock to fast mode, it should write the SCL high time and SCL low time registers with different hex values during initialization. This should be done on every power up. Is this understanding correct?

0 Carter Langston 2 months ago in reply to Rajj

TI__Intellectual 800 points

Hello Rajj,

Yes, this understanding is correct. The registers that need to be written to are 0x11 and 0x12.

Best,

Carter Langston

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DS90UB933-Q1: I2C clock speed