Bios - chipset – Kontron KTQ77-FLEX User Manual
Page 112
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