Embedian SMARC-iMX8MM, User Manual

Page: 50 / 169

Embedian, Inc.
50
SMARC-iMX8MM Computer on Module User’s Manual
v. 1.2
2.1.9.1. PCIe_Link Signals
The table below shows the PCIe_Link A related signals.
Edge Golden
Finder
Signal Name
Direction Type
Tolerance
Description
PCI Express Port A
PC
PCIE_A_TX ‐
Output HCSL PCIe Differential PCIe Link A transmit data pair 0
Series coupling caps is on the Module
Caps is 0402 package 0.1uF
PC
PCIE_A_RX ‐
Input HCSL PCIe Differential PCIe Link A receive data pair 0
No coupling caps on Module
PCIE_
PCIE_A_REFCK ‐
Output HCSL PCIe Differential PCIe Link A reference clock output
DC coupled
PCIE_A_RST# Output CMOS
3.3V
PCIe Port A reset output
2.1.9.2. PCIe Wake Signals
The table below shows the PCIe Wake signal.
Edge Golden
Finder
Signal Name
Direction Type
Tolerance
Description
PCIE_WAKE# Input CMOS 3.3V PCIe wake up interrupt to host – common to
PCIe links A, B, C – pulled up or terminated on
Module