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Note: iAMT H/W is always enabled. This option just controls the BIOS extension. If
enabled, this requires additional firmware in the SPI device.
BIOS Hotkey Pressed: OEMFLag Bit 1: Enable/Disable BIOS hotkey press.
MEBx Selection Screen: OEMFLag Bit 2: Enable/Disable MEBx selection screen.
Hide Un‐Configure ME Confirmation: OEMFLag Bit 6: Hide Un‐Configure ME without
password Confirmation Prompt.
MEBx Debug Message Output: OEMFLag Bit 14: Enable MEBx debug message Output.
Un‐Configure ME: OEMFLag Bit 15: Un‐Configure ME without password.
Amt Wait Timer: Set timer to wait before sending ASF_GET_BOOT_OPTIONS.
ASF: Enable/Disable Alert Specification Format
Activate Remote Assistance Process: Trigger CIRA boot.
USB Configure: Enable/Disable USB Configure function.
PET Progress: User can Enable/Disable PET Events progress to receive PET events or not.
WatchDog: Enable/Disable WatchDog Timer.
USB Configuration:
Legacy USB Support: Enable Legacy USB support. AUTO option disables legacy support if
no USB devices are connected. DISABLE option will keep USB devices available only for EFI
applications
EHCI Hand‐off: This is a workaround for 0Ses without EHCI hand‐off support. The EHCI
ownership change should be claimed by EHCI driver.
USB transfer time‐out: The time‐out value for Control, Bulk, and Interrupt transfers. The
choice: 1 sec, 5 sec, 10 sec, 20 sec
Device reset time‐out: USB mass storage device Start Unit Command time‐out. The choice:
10 sec, 20 sec, 30 sec, 40 sec
Device power‐up delay: USB mass storage device Start Unit Command time‐out.
Figure. 21 AMT Configuration setting
USB Configuration Parameters.
22
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