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BIOS Setup
MB998
User’s Manual
63
4
4.4.9
USB Configuration
BIOS Setting
Description
Legacy USB Support
Enabled
enables Legacy USB support.
Auto
disables legacy support if there is no
USB device connected.
Disabled
keeps USB devices available only
for EFI applications.
XHCI Hand-off
This is a workaround for OSes without XHCI
hand-off support. The XHCI ownership change
should be claimed by XHCI driver.
USB Mass Storage
Driver Support
Enables / Disables the support for USB mass
storage driver.
USB Transfer
time-out
The time-out value (1 / 5 10 / 20 secs) for Control,
Bulk, and Interrupt transfers.
Device reset time-out
Gives seconds (10 / 20 / 30 / 40 secs) to delay
execution of Start Unit command to USB mass
storage device.
Device power-up
delay
The maximum time the device will take before it
properly reports itself to the Host Controller.
Auto
uses default value for a Root port it is
100ms. But for a Hub port, the delay is taken from
Hub descriptor.
Summary of Contents for MB998 Series
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Page 14: ...6 MB998 User s Manual 1 6 Block Diagram...
Page 15: ...General Information MB998 User s Manual 7 1 1 7 Product View Top View Bottom View...
Page 16: ...8 MB998 User s Manual I O View 1 8 Board Dimensions...
Page 20: ...12 MB998 User s Manual 2 3 Jumper Connector Locations...
Page 34: ...26 MB998 User s Manual 2 5 7 J6 M 2 M Key NVME CPU 2 5 8 J7 PWM Programming Factory use only...
Page 36: ...28 MB998 User s Manual 2 5 10 J9 eSPI Debug Factory use only...
Page 38: ...30 MB998 User s Manual 2 5 12 J11 DDR5 UDIMM CHA 0 2 5 13 J12 DDR5 UDIMM CHB 0...
Page 40: ...32 MB998 User s Manual 2 5 16 J15 M 2 B Key Socket 2 5 17 J16 SIM Card Slot...
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Page 73: ...BIOS Setup MB998 User s Manual 65 4 4 4 11 NVMe Configuration...
Page 83: ...BIOS Setup MB998 User s Manual 75 4 4 9 MEBx...
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