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AM623: How can communicate AM623 with its MCU?

Jom Sab
Prodigy 40 points
Part Number: AM623

Hi,

We are using AM623 in our new design, we need to put AM623 in "MCU only" mode (Low Power Modes) .

So some major devices are kept under internal MCU interface( I2C , 4-lane UART).

In normal operation , How can pass the data's from MCU to SoC? is there any delay?

How can communicate the MCU to SoC for wakeup?

Also please let me know current consumption in MCU only mode?

Regards

Jom Sabu

  • 0
    TI__Guru**** 156491 points

    Hi Jom,

    Jom Sab said:
    In normal operation , How can pass the data's from MCU to SoC? is there any delay?

    Can you please elaborate? What kind of data pass do you want to do? By SoC, do you mean to A53?

    Jom Sab said:
    How can communicate the MCU to SoC for wakeup?

    The MCU-Only mode wakeup events are described in the AM62x TRM Table 6-2403 "Low Power Mode Wakeup Events".

  • 0 in reply to Bin Liu
    Prodigy 40 points

    Hi,

    We have connected GPS, GSM modules and Sensors are under internal MCU of AM62, by using I2C and 4 lane UART interfaces of MCU

    How can get the data's to A53 from MCU? is there any internal connection?

    Also please let me know current consumption in MCU only mode?

    Regards

    Jom Sabu

  • 0 in reply to Jom Sab
    Prodigy 40 points

    Hi

    Could you please updated ? we are in final stage of PCB design

    Regards

    jom sabu

  • 0 in reply to Jom Sab
    TI__Guru**** 156491 points

    Hi Jom,

    Sorry but I still don't have the full picture of your system. Do you have a diagram showing it?

    Jom Sab said:
    4 lane UART

    What do you mean by "4 lane"? to connect the external sensors/devices to mcu uart with rxd/txd/rts/cts uart lines?

    Jom Sab said:

    by using I2C and 4 lane UART interfaces of MCU

    How can get the data's to A53 from MCU? is there any internal connection?

    Yes, you would need IPC to communicate between software running on A53 and MCU M4F. Please create a separate E2E post if you want to know more details. Our IPC expert will help.

    Jom Sab said:
    Also please let me know current consumption in MCU only mode?

    MCU-only mode is not supported in current SDK yet, the feature is still under development. I don't think we have accurate number for this yet.