Figure C.29Usb Configuration - Advantech ECU-4784 Series User Manual

PCIE LTR
This item allows users to enable or disable PCIE LTR.
PCIE LTR Lock
This item allows users to enable or disable PCIE LTR Configuration Lock.
Snoop Latency Ocerride
This item allows users to select Snoop Latency Ocerride for PCH PCIE.
Non Snoop Latency Ocerride
This item allows users to select Non Snoop Latency Ocerride for PCH PCIE.
 USB Configuration
– USB Precondition
This item allows users to enable or disable USB Precondition.
Precondition work on USB host controller and root ports for faster enumera-
tion.
– XHCI Mode
This item allows users to select mode of operation of XHCI mode.
– XHCI Idle L1
This item allows users to enable or disable XHCI Idle L1.
XHCIIDLE L1 can be set to disable for LPT-LP Ax stepping to workaround
USB3 hot plug will fail after 1 hot plug removal.
– BTCG
This item allows users to enable or disable trunk clock gating.
– USB Ports Per-Port Disable Control
This item allows users to enable or disable USB Ports Per-Port Disable Con-
trol. Control each of the USB ports (0~13) disabling
Figure C.29 USB Configuration
71 ECU-4784 User Manual