Intel MPCBL0001 manual Controls Identifier Table, Get Control State, Get Port80 Data

Hardware Management Overview

3.7.6Get Control State

This command sets the state of a control pin. This command overrides the AUTO-state of the control pin. Refer to Table 20 on page 50 for control number information.

Table 18.	Get Control State
		7	6		5	4	3	2	1		0
	NetFn/LUN			NetFn = 3Eh (OEM Request)						RsLUN
	Command					Cmd = 21h
	Byte 1	Control number
	Byte 1					Completion code
	Byte 2	Control state, 0 = Deassert, 1 = Assert, 3 = Reserved, FF = Don’t change settings

3.7.7Get Port80 Data

This command returns the last byte value written by the BIOS to Port 80 since the last System Reset. If no data has been written to the port since System Reset, the Completion Code returned is CBh.

Table 19.	Get Port80 Data
		7	6		5	4	3	2	1		0
	NetFn/LUN			NetFn = 30h (OEM Request)						RsLUN
	Command					Cmd = 2Dh
	Byte 1	— (BLANK)
	Byte 1					Completion code
	Byte 2	Last Port 80 code value (in HEX)

3.8Controls Identifier Table

Table 20 below lists the control identifiers that can be used with Set/Get Control State IPMI commands to query or set information on certain controls in the firmware.

Table 20.	Controls Identifier Table
	Control Description	Control Number
	FWH Hub (for BIOS bank information) 0	0
	FWH 0 Write Protect	1
	FWH 1 Write Protect	2
	FWH 0 Top Block Lock	3
	FWH 1 Top Block Lock4	4

50	Intel NetStructure® MPCBL0001 High Performance Single Board Computer
	Technical Product Specification