AM5718: Which pad to use for PMIC_INT

Sina Vosooghi

Part Number: AM5718
Other Parts Discussed in Thread: AM5728, , TPS22965

Hello,

In the AM5728 ref design , the WAKEUP0 pad is used for the PMIC_INT signal on the TPS22965. However, on the AM5718 RDK the GPIO6_16 pad is used for PMIC_INT which does not have a wakeup muxing option. According to the latest AM571x/AM572x compatibility document the WAKEUP0 pad on the AM5718 supports a wakeup muxing option and a gpio option but the wording is not clear. Our design is required to to support both processors depending on the BOM option, and I wanted to see if using the WAKEUP0 pin on the AM5718 as the PMIC_INT will cause any issues.

Cheers

S.V

over 8 years ago

0 Biser Gatchev-XID over 8 years ago

TI__Guru**** 393215 points

Hi,

GPIO6_16 is also used on the AM572x IDK, so you can safely connect PMIC_INT there.

0 Sina Vosooghi over 8 years ago in reply to Biser Gatchev-XID

Prodigy 60 points

Thank you for the quick response.

We are currently using the WAKEUP0 signal in our PCB as PMIC_INT. We would rather not respin the design, so I want to know if there are any problems using the WAKEUP0 as PMIC interrupt with the AM571x . The latest compatibility document and TRM shows that the WAKEUP0 pin has a GPIO muxing option.

Cheers

S.V

0 Biser Gatchev-XID over 8 years ago in reply to Sina Vosooghi

TI__Guru**** 393215 points

I expect this will work too.

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AM5718: Which pad to use for PMIC_INT