Bios - chipset – Kontron KTQ77-FLEX User Manual

Page 112

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KTQ77/Flex Users Guide

KTD-N0848-C Page 112



Note1: Not visible if “xHCI Mode” is Disabled.
Note2: Only visible if “USB Ports Per-Port Disable Control” is Enabled.





Function

Selection

Description

XHCI Pre-Boot Driver

Enabled
Disabled

Enable or disable XHCI Pre-Boot Driver
support.

xHCI Mode

Smart Auto
Auto
Enabled
Disabled

Mode of operation of xHCI controller.

HS Port #1 Switchable
HS Port #2 Switchable HS
Port #3 Switchable HS Port
#4 Switchable (Note1)

Disabled
Enabled

Allows for HS port switching between xHCI and
EHCI.
If disabled, port is routed to EHCI.
If HS port is routed to xHCI, the corresponfing
SS port is enabled.

xHCI Streams

Disabled
Enabled

Enable xHCI Maximum Primary Stream Array
Size.

ECHI1

Disabled
Enabled

Control the USB EHCI (USB 2.0) functions.
One EHCI controller must always be enabled.

ECHI2

Disabled
Enabled

Control the USB EHCI (USB 2.0) functions.
One EHCI controller must always be enabled.

USB Ports Per-Port
Disable Control

Disabled
Enabled

Control each of the USB ports (0 – 13)
disabling.

USB Port #(0-13) Disabled
(Note2)

Disabled
Enabled

Disabled USB port.

BIOS - Chipset

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