Kontron KTQ77/Flex User Manual page 112

KTD-N0848-B
Function
XHCI Pre-Boot Driver
xHCI Mode
HS Port #1 Switchable
HS Port #2 Switchable HS
Port #3 Switchable HS Port
#4 Switchable (Note1)
xHCI Streams
ECHI1
ECHI2
USB Ports Per-Port
Disable Control
USB Port #(0-13) Disabled
(Note2)
Note1: Not visible if "xHCI Mode" is Disabled.
Note2: Only visible if "USB Ports Per-Port Disable Control" is Enabled.
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Selection
Enabled
Disabled
Smart Auto
Auto
Enabled
Disabled
Disabled
Enabled
Disabled
Enabled
Disabled
Enabled
Disabled
Enabled
Disabled
Enabled
Disabled
Enabled
Description
Enable or disable XHCI Pre-Boot Driver
support.
Mode of operation of xHCI controller.
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.
Enable xHCI Maximum Primary Stream Array
Size.
Control the USB EHCI (USB 2.0) functions.
One EHCI controller must always be enabled.
Control the USB EHCI (USB 2.0) functions.
One EHCI controller must always be enabled.
Control each of the USB ports (0 – 13)
disabling.
Disabled USB port.
KTQ77/Flex Users Guide
BIOS - Chipset