Intel Intel Gigabit Ethernet Controllers, PCI-X manual Boot Agent Main Setup Options

EEPROM Interface

Table 5-15. Boot Agent Main Setup Options

Bit	Name	Description
		PXE Presence.
		Setting this bit to 0b Indicates that the image in the FLASH contains a
		PXE image.
15	PPB	Setting this bit to 1b indicates that no PXE image is contained.
		The default for this bit is 0b in order to be backwards compatible with
		existing systems already in the field.
		If this bit is set to 0b, EEPROM word 32h (PXE Version) is valid. When
		EPB is set to 1b and this bit is set to 0b, indicates that both images are
		present in the FLASH.
		EFI Presence.
		Setting this bit to 1b Indicates that the image in the FLASH contains an
		EFI image.
14	EPB	Setting this bit to 0b indicates that no EFI image is contained.
		The default for this bit is 0b in order to be backwards compatible with
		existing systems already in the field.
		If this bit is set to 1b, EEPROM word 33h (EFI Version) is valid. When
		PPB is set to 0b and this bit is set to 1b, indicates that both images
		(PXE and EFI) are present in the FLASH.
13	Reserved	Reserved for future use. Set this bit to 0b.
		Force Full Duplex.
12	FDP	Set this bit to 0b for half duplex; set to 1b for full duplex.
		Note that this bit is a don’t care unless bits 10 and 11 are set.
		These bits determine speed. 01b = 10 Mbs, 10b = 100 Mbs, 11b = Not
11:10	FSP	allowed.
		All zeros indicate Auto-negotiate (the current bit state).
		Note that bit 12 is a don’t care unless these bits are set.
9	Reserved	Reserved for future use. Set this bit to 0b.
		Display Setup Message.
8	DSM	If this bit is set to 1b, the "Press Control-S" message appears after the
		title message.
		The default for this bit is 1b.
		Prompt Time. These bits control how long the "Press Control-S" setup
		prompt message appears, if enabled by DIM.
		00b = 2 seconds (default)
7:6	PT	01b = 3 seconds
		10b = 5 seconds
		11b = 0 seconds
		Note that the Ctrl-S message does not appear if 0 seconds prompt time
		is selected.
		Local Boot Selection (OBSOLETE). In previous versions of the agent,
5	LBS	this bit enables or disables local boot, if the DBS bit selects it.
		The default for this bit is 1b; enable local booting. The boot agent, at
		runtime, no longer uses this bit.

Software Developer’s Manual 117