DS90UH948-Q1: I2C Timing

Jared Becker

Part Number: DS90UH948-Q1

Hi Team,

If I use a 947 to talk to a 948, and I set the SCL High/Low time via registers 0x26 and 0x27 on the 948, do I have to wait for a certain period of time before I start sending I2C commands with the 947?

Thanks,

Jared

over 6 years ago

0 Steven(Shenzhen) Shi over 6 years ago

TI__Mastermind 30515 points

Hi Jared,

No, it doesn't need it. but the local I2C master should have I2C clock stretching function, otherwise the I2C bus would be "dead" as the response from the remote I2C slave would be delayed at about several us.

Attached is one paper on I2C over FPD-Link III for your reference. thanks.

www.ti.com/.../snla131a.pdf

best regards,

Steven