TCA9543A: TCA9543

Sathya Priya

Part Number: TCA9543A

Hi team, We need support on software side for validating the I2C lines in TCA9543A mux.

We are using CCI I2C

We are able to check the input I2C lines are coming up in saleae. The output side channel is not detecting anything.

Anything need to be taken care from our side.

Thanks,

Sathya.

0 Clemens Ladisch over 1 year ago

Guru 306020 points

By default, all eight downstream channels are disabled. Did you configure the switch?

0 Sathya Priya over 1 year ago in reply to Clemens Ladisch

Yes, we configured the I2C MUX, mux ic is detected. Input channel detected.

Output channel 0 and channel 1 are not coming up.

0 Sathya Priya over 1 year ago in reply to Sathya Priya

We tried enabling the channel 1 , it is not detecting

0 Clemens Ladisch over 1 year ago in reply to Sathya Priya

Guru 306020 points

What value do you get when you read the mux's configuration register?

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