SUPER MICRO Computer P8SCI, P8SC8 manual Post hex Description

P8SC8/P8SCi User’s Manual

POST (hex)	Description
0Fh	Reserved
10h	Auto detect flash type to load appropriate flash R/W codes into the
	run time area in F000 for ESCD & DMI support.
11h	Reserved
12h	Use walking 1’s algorithm to check out interface in CMOS
	circuitry. Also set real-time clock power status, and then check for
	override.
13h	Reserved
14h	Program chipset default values into chipset. Chipset default
	values are MODBINable by OEM customers.
15h	Reserved
16h	Initial Early_Init_Onboard_Generator switch.
17h	Reserved
18h	Detect CPU information including brand, SMI type (Cyrix or
	Intel) and CPU level (586 or 686).
19h	Reserved
1Ah	Reserved
1Bh	Initial interrupts vector table. If no special specified, all H/W
	interrupts are directed to SPURIOUS_INT_HDLR & S/W
	interrupts to SPURIOUS_soft_HDLR.
1Ch	Reserved
1Dh	Initial EARLY_PM_INIT switch.
1Eh	Reserved
1Fh	Load keyboard matrix (notebook platform)
20h	Reserved
21h	HPM initialization (notebook platform)
22h	Reserved
23h	1. Check validity of RTC value:
	e.g. a value of 5Ah is an invalid value for RTC minute.
	2. Load CMOS settings into BIOS stack. If CMOS checksum fails, use default
	value instead.
	3. Prepare BIOS resource map for PCI & PnP use. If ESCD is valid, take into
	consideration of the ESCD’s legacy information.
	4. Onboard clock generator initialization. Disable respective clock resource to
	empty PCI & DIMM slots.
	5. Early PCI initialization:
	-Enumerate PCI bus number
	-Assign memory & I/O resource
	-Search for a valid VGA device & VGA BIOS, and put it
	into C000:0.
24h	Reserved
25h	Reserved
26h	Reserved
27h	Initialize INT 09 buffer
28h	Reserved
29h	Program CPU internal MTRR (P6 & PII) for 0-640K memory address.
	Initialize the APIC for Pentium class CPU.
	Program early chipset according to CMOS setup. Example: onboard IDE
	controller.
	Measure CPU speed.
	Invoke video BIOS.
2Ah	Reserved
2Bh	Reserved
2Ch	Reserved

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