TZ77XE3/TZ75XE3 UEFI BIOS Manual
13
EHCI Hand-Off
This is a workaround for OSes without EHCI hand-off support. The EHCI ownership
change should be claimed by EHCI driver.
Options: Disabled (Default) / Enabled
Port 60/6 4 Emulation
This items enables I/O port 60h/64h emulation support. This should be enabled for
the co mplete USB keyboard legacy s upport fo r no n-US B aware OSes.
Options: Enabled (Default) / Disabled
USB transfer time-out
The time-out value for Control, Bulk, and Interrupt transfers.
Options: 20 sec (Default) / 1 sec / 5 sec / 10 sec
Device reset time-out
The item sets USB mass storage device Start Unit command time-out.
Options: 20 sec (Default) / 1 sec / 5 sec / 10 sec
Device power-up delay
“Auto” uses default value: for a Root port it is 100ms, for a Hub port the delay is
taken from Hub descriptor.
Options: Auto (Default) / Manual
Device power-up delay in seconds
Delay range is 1 ~ 40 seconds, in one second increments.
Options: 5 (Default)
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