AW693 PCIE_PERSTn

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AW693 PCIE_PERSTn

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jiandong1
Contributor I

Hi,NXP:

88Q9098S PCIE_PERSTn supply by VIO,PCIE_WAKEn and PCIE_CLKREQn are as well;

but AW693 PCIE_PERSTn supply by VIO_RF,PCIE_WAKEn and PCIE_CLKREQn supply by 3.3V;

details are in attachment,Why AW693 is different with 88Q9098S,especially PCIE_PERSTn?

Now we use the gpio of I.MX6 as host to reset pcie interface of AW693,if PCIE_PERSTn of AW693 supply by 1.8V,the gpio of I.MX6 supply by 3.3V,whether need to perform level shift?If not,what will be the result?

Thank you for reply~

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shaun_wu
NXP TechSupport
NXP TechSupport

Hello @jiandong1 

 

Normally VPA is 3.3V. If you use PCIE_PERSTn and host is 3.3V. Please make sure VPA is 3.3V.

 

Best Regards

Shaun

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