Intel MPCBL0010 manual CPU 0 VIDs 18h, ADC Grab Control 20h, VID5 VID4 VID3 VID2 VID1 VID0

Addressing—MPCBL0010 SBC

Even though authorization is given by the IPMC to drive the clocks to the AdvancedMC module, no actual clocks are driven if the module is not present, unpowered, or illpowered. These bits can be set prior to turning on the AdvancedMC module’s power. A readback will return the state of the bit, but does not reflect the actual clock. In the case of bad power (12VFault = 1, for example), the clock is not driven even if the authorization bit is set. On an AdvancedMC module extraction, these bits are automatically cleared.

Table 94.	CPU 0 VIDs 18h
	Address	Action	D7	D6	D5	D4	D3	D2	D1	D0
		Read	NU	NU	VID5	VID4	VID3	VID2	VID1	VID0
	18h	Write	NU	NU	NU	NU	NU	NU	NU	NU
		PowerUp	NU	NU	NU	NU	NU	NU	NU	NU

Table 95.	CPU 0 Status 19h
	Address	Action	D7	D6	D5	D4	D3	D2	D1	D0
		Read	NU	NU	MCERR	HOT	TRIP	VTT	IERR	PR
	19h	Write	NU	NU	NU	NU	NU	NU	NU	NU
		PowerUp	NU	NU	NU	NU	NU	NU	NU	NU

PR: CPU present

IERR: CPU internal error

VTT: CPU type required VTT

TRIP: Indicates a thermal trip was detected and the CPU switcher was turned off. This bit retains its value when the board is turned off, but it is cleared at power-up time. Prior to the first power up, this bit is always cleared (no special treatment needed for the first powerup).

HOT: Indicates the CPU pin PROCHOT# is asserted.

MCERR: CPU Machine Check Error. Asserted on various conditions that are BIOS- dependant

Table 96.	ADC Grab Control 20h
	Address	Action	D7	D6	D5	D4	D3	D2	D1	D0
		Read	NU	NU	NU	NU	NU	NU	NU	NU
	20h	Write	NU	NU	NU	NU	NU	NU	NU	NU
		PowerUp	NU	NU	NU	NU	NU	NU	NU	NU

Any Bit: Writing any value to the grab register arms the grab circuit. The grab circuit captures the next conversion result in about 1 ms.

The analog to digital conversion is a continuous process in the sense that conversion occurs regardless of the IPMC. Valid data is available every millisecond or so. The IPMC tells the FPGA in advance that wants a fresh copy of the ADCs reading. Unless the IPMC requests a fresh copy, the ADC values returned by the FPGA never change.

	Intel NetStructure® MPCBL0010 Single Board Computer
October 2006	Technical Product Specification
Order Number: 304120	109