Advantech ARK-2120, User Manual

Page: 47 / 60

35 ARK-2120 User Manual
Chapter 3
B
IOS Settings

Legacy USB Support
Enable the support for legacy USB. Auto option disables legacy support if no
USB devices are connected.

EHCI Hand-Off
This is a workaround for the OS without EHCI hand-off support. The EHCI own-
ership change should claim by EHCI driver.

Port 60/64 Emulation
Enable or disable I/O port 60h/64h emulation support.

USB transfer time-out
Set the time-out value for Control, Bulk, and Interrupt transfers.

Device reset time-out
Set USB mass storage device Start Unit command time-out value.

Device power-up delay
Sets the maximum time the device will take before it properly reports itself to the
Host Controller. 'Auto' uses a default value: for a Root port it is 100 ms, for a
Hub port the delay is taken from the Hub descriptor.
3.4.8 Embedded Controller Configuration
Figure 3.10 Embedded Controller Configuration

EC iManager WatchDog IRQ
This item allows users to set the irq number of EC watchdog.

EC Power Saving Mode
This item allows users to set board's power saving mode when off.

EC iManager Smart FAN
This item allows users to enable or disable smart FAN feature.

Backlight Enable Polarity (F version only)
This item allows users to set backlight enable polarity.

EC Watch Dog Function
This item allows users to enable or disabled EC watchdog function.