[DRA829] pin status after MCU_RESETz and RESET_REQz

Peter Li79

Hi,

There are two reset on J721E EVM.

Customer is asking questions about the pin state when MCU_RESETz is released, and also the pin state when RESET_REQz is released.

Please kindly provide some comments.

Any comments or questions are welcome.

over 5 years ago

0 Peter Li79 over 5 years ago

TI__Expert 8940 points

Hi,

MCU_RESETz : MCU Domain warm reset

RESET_REQz : Main Domain external warm reset request input

From the TRM, we can find some information regarding warm reset. After warm reset, the IO pad will be reset to the default state, which can be referred in the Data Manual. But some clocks/PLLs are isolated from warm reset.

0 Yordan Kamenov over 5 years ago in reply to Peter Li79

TI__Mastermind 42515 points

Hi Peter,

thanks for sharing your findings.

Regards,

Yordan

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[DRA829] pin status after MCU_RESETz and RESET_REQz