Intel Intel NetStructure Single Board Computer DIM Code Checkpoints, Acpi Runtime Checkpoints

MPCBL0010 SBC—Error Messages

Table 62.	POST Code Checkpoints (Continued)
	Checkpoint	Description
	A1	Clean-up work needed before booting to OS.
		Takes care of runtime image preparation for different BIOS modules. Fill the free area in F000h
	A2	segment with 0FFh. Initializes the Microsoft IRQ Routing Table. Prepares the runtime language
		module. Disables the system configuration display if needed.
	A4	Initialize runtime language module.
	A7	Displays the system configuration screen if enabled. Initialize the CPUs before boot, which
		includes the programming of the MTRRs.
	A8	Prepares CPU for OS boot, including final MTRR values.
	A9	Waits for user input at config display if needed.
	AA	Uninstalls POST INT1Ch vector and INT09h vector. Deinitializes the ADM module.
	AB	Prepares BBS for Int 19 boot.
	AC	End of POST initialization of chipset registers.
	B1	Saves system context for ACPI.
	00	Passes control to OS Loader (typically INT19h).
	61-70	OEM POST Error. This range is reserved for chipset vendors & system manufacturers. The error
		associated with this value may be different from one platform to the next.

Table 63. DIM Code Checkpoints

Checkpoint	Description
	Initializes different buses and performs the following functions:
	• Function 0: Reset, Detect, and Disable - Disables all device nodes, PCI devices, and
	PnP ISA cards. Assigns PCI bus numbers.
2A	• Function 1: Static Device Initialization - initializes all static devices that include
	manual configured onboard peripherals, memory and I/O decode windows in PCI-PCI
	bridges, and noncompliant PCI devices. Reserves static resources.
	• Function 2: Boot Output Device Initialization - Searches for and initializes any PnP,
	PCI, or AGP video devices.

Initializes different buses and performs the following functions:

•Function 3: Boot Input Device Initialization - Searches for and configures PCI input devices and detects if system has standard keyboard controller.

38• Function 4: IPL Device Initialization - searches for and configures all PnP and PCI boot devices.

•Function 5: General Device Initialization - Configures all onboard peripherals that are set to automatic configuration and configures all remaining PnP and PCI devices.

Table 64.	ACPI Runtime Checkpoints
	Checkpoint	Description
	AC	First ASL check point. Indicates the system is running in ACPI mode.
	AA	System is running in APIC mode.
	01, 02, 03, 04, 05	Entering sleep state S1, S2, S3, S4, or S5.
	10, 20, 30, 40, 50	Waking from sleep state S1, S2, S3, S4, or S5.

Intel NetStructure® MPCBL0010 Single Board Computer
Technical Product Specification	October 2006
92	Order Number: 304120