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~
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