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BQ79600-Q1: The usage of WriteType/ReadType for auto-addressed daisy-chain devices

JEHEON JEONG
Prodigy 140 points
Part Number: BQ79600-Q1

Tool/software:

Hello, This is JJ

I wonder that usage of these types of parameters.

If I have the equipment 1 BMU, 1 Transceiver, and 2 CMU, the address are 0, 1, 2

   (BMU <> Transceiver <> CMU <> CMU)

address :           0                   1            2

In this situation, how can I write/read registers using read/write parameters?

For example, If I want to check the first CMU, not about second CMU, which parameters should be used?

I want to clarify the single / stack / broadcast parameters' roles and usage.

Please let me know

Best regards,

JJ

  • 0
    TI__Expert 7000 points

    Hi JJ,

    A Single read would allow you to check the first CMU and not the second CMU. The single read requires you to specify if you are reading from stack device 0, 1, or 2.

    A broadcast read will read data from devices 0, 1, and 2. If the register does not exist, 0x00 will be the data read.

    A stack read will read data from devices 1 and 2.

    A single write would all you to write to a specific transceiver, or CMU.

    A broadcast write will write data to devices 0, 1, and 2.

    A stack write will write data to devices 1 and 2.

    Regards,

    David Ray