DS90UB948-Q1: Can Host CPU communicate and control remote I2C slaves connected with DS90UB948 Deserializer?

Sundar Vinayagam

Intellectual 456 points

Part Number: DS90UB948-Q1

Hello Team,

The below picture is our requirement.

Can we control all the remote i2c devices (Sensot,MCU and Display) connected with 948, from HOST CPU?

Is it similar like this?

How to get i2c address of multiple slave devices and control with HOST CPU?Is it possible?

over 5 years ago

0 Sundar Vinayagam over 5 years ago

Intellectual 456 points

We have the above architecture. We have to control multiple I2C slaves connected with 948 from HOST CPU.

Is that possible?

How to get the remote slave i2c address?

0 Casey McCrea over 5 years ago in reply to Sundar Vinayagam

TI__Guru** 103215 points

Hello Sundar,

Yes this architecture is possible and utilized in many FPD-Link applications. Please check this training video for information: https://training.ti.com/infotainment-ivi-back-channel-basics?context=1134310-1139225-1134308

The remote slave device addresses must be known in advance and programmed into the 947 slave address registers. If the MCU on the 948 side will act as an I2C master to the local 948 then it also must support I2C multi-master operation under this condition

Best Regards,

Casey

Interface

Interface forum

DS90UB948-Q1: Can Host CPU communicate and control remote I2C slaves connected with DS90UB948 Deserializer?