Power management – Avalue EMX-CDT User Manual
Page 31
EMX-CDT User
’s Manual
EMX-CDT User
’s Manual 31
Item
Options
Description
Legacy USB Support
Enabled[Default]
Disabled
Auto
Enables Legacy USB support.
AUTO disables legacy support if no USB devices are
connected. DISABLE will keep USB devices
available only for EFI applications.
ECHI Hand-Off
Enabled
Disabled[Default]
This is a workaround for OSes without EHCI hand-off
support. The EHCI ownership change should be
claimed by EHCI driver.
USB transfer time-out
1sec / 5sec
10sec / 20sec[Default]
The time-out value for Control, Bulk, and Interrupt
transfers.
Device reset time-out
10sec / 20sec[Default]
30sec / 40sec
USB mass storage device Start Unit command
time-out.
Device power-up delay
Auto[Default]
Manual
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, for a Hub
port the delay is taken from Hub descriptor.
3.6.2.6 Power Management
Item
Options
Description
Power On By PS/2 Keyboard
Disabled[Default]
AnyKey
Passwod
Power On By PS/2 Keyboard
Power on By PS/2 Mouse
Disabled[Default]
Enabled
Power on By PS/2 Mouse
Wake By PME
Disabled
Enabled[Default]
Wake By PME
AC Power Loss
Power Off[Default]
Power On
Last State
AC Power Loss