TYAN S5556, Manual

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75
Port 60/64 Emulation
Enables I/O Port 60h/64h emulation support. This should be enabled for the
complete USB keyboard legacy support for non-USB aware OSes.
Enabled / Disabled
USB transfer time-out
The time-out value for Control, Bulk and Interrupt transfers.
1 sec / 5 sec / 10 sec / 20 sec
Device reset time-out
USB mass storage device Start Unit command time-out.
10 sec / 20 sec / 30 sec / 40 sec
Device power-up delay
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 100 ms, for a Hub port the
delay is taken from Hub descriptor.
Auto / Manual