iMX257 : access the General Purpose Unsecured Status Register in order to monitor the wait mode

[koichisakagami]

Dear community,

We have been developing our product with iMX257.
We plan to use Wait Mode for low power consumption.
We would like to monitor the Wait state .

In reference manual (IMX25RM Rev. 2) ,
it seems that the GPUSR1(A_WFI bit ) indicates the ARM core standby wfi.

We would like to access  the GPUSR1 registe with JTAG-ICE.

[Question]
        What kind of method can we access GPUSR1 by?

        We can not find the GPUSR1 register address .
        How many value is the $BASE ?

    Best Regards,
    Koichi Sakagami

[Yuri · Accepted solution]

Hello,

  The mentioned General Purpose Unsecured Status Registers are accessible only in
JTAG debug mode. It is not used for general user applications.

Have a great day,
Yuri

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[koichisakagami]

Dear Yuri san,

Thank you for your answer.

Best Regards,

Koichi Sakagami