There is some conflicttion about the description of the Pcie Control signal like PEX_L0_CLKREQ_N.etc In the OEM design guide Page 26 ，the signal is CMOS 1.8V，but in page 36，the signal is pulled up to VDDIO_AO_3V3？which page is right？

The Voltage of the PEX_L0_CLKREQ_N is 1.8v or 3.3v?

Trumany January 19, 2021, 2:06am 3

It’s 3.3V.

Topic		Replies	Views
Xavier module PCIe interface control signal is 1.8V or 3.3V? Jetson AGX Xavier	1	441	September 25, 2019
PEX_Lx_RST_N/PEX_Lx_CLKREQ_N signals electrical level Jetson AGX Xavier hw , board-design	2	517	October 18, 2021
Description conflict in Xavier spec for PEX pins Jetson AGX Xavier	3	564	September 25, 2019
What's the voltage of PEX_L5_RST_N(H10) Jetson AGX Xavier hw	2	498	October 18, 2021
PCIe RESET_N, CLKREQ, WAKE_N voltage level at M.2 M and E key Jetson AGX Xavier pcie , board-design	5	3320	October 18, 2021
PCIe CLKREQ# Jetson AGX Xavier pcie	5	894	October 18, 2021
PCIe Reset Jetson AGX Xavier hw	2	551	October 18, 2021
Xavier pad voltage and PMIC power rail question, especially for PCIe Jetson AGX Xavier pcie , gpio , power , pinmux , device-tree	8	1484	October 18, 2021
PCIe CLKREQ functionality Jetson AGX Xavier	3	1497	October 18, 2021
PCIe Jetson Xavier Jetson AGX Xavier pcie	2	349	October 18, 2021