About SPI Slave Port of ADAU1452

Hello, ADI Support Team

I have a quick question about ADAU1452.

When SS (Slave Select) is High (Transaction is disable), is MISO Hi-Z?

Best Regards, TomY

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  • Hello, ADI Support Team

    I have an additional explanation.

    As the background of this question, I am considering to connect between MCU and ADAU1452 and other device via SPI.

    And then, SPI master is MCU, and SPI slave is ADAU1452 and other device.

    In this Multiple slave connection, when MCU is transmitting with other device, MISO pin of ADAU1452 should be Hi-Z, I think.

    So, I'd like to confirm if MISO of ADAU1452 is Hi-Z or not, when CS is high (ADAU1452 is not selected).

    Best regards, TomY

Reply
  • Hello, ADI Support Team

    I have an additional explanation.

    As the background of this question, I am considering to connect between MCU and ADAU1452 and other device via SPI.

    And then, SPI master is MCU, and SPI slave is ADAU1452 and other device.

    In this Multiple slave connection, when MCU is transmitting with other device, MISO pin of ADAU1452 should be Hi-Z, I think.

    So, I'd like to confirm if MISO of ADAU1452 is Hi-Z or not, when CS is high (ADAU1452 is not selected).

    Best regards, TomY

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