Features
Offset:
00h
Bit
Description
7:0
Data Format Revision
The data format revision is used whenever fields within the PIROM are
redefined. The initial definition will begin at a value of 1. If a field, or bit
assignment within a field, is changed such that software needs to discern
between the old and new definition, then the data format revision field will be
incremented.
00h: Reserved
01h: Initial definition
02h: Second revision
03h: Third revision
04h: Fourth revision
05h:Fifth revision (Defined by this document)
06h-FFh: Reserved
7.5.1.2
PISIZE: PIROM Size
This location identifies the PIROM size. Writes to this register have no effect.
Offset:
01h-02h
Bit
Description
15:0
PIROM Size
The PIROM size provides the size of the device in hex bytes. The MSB is at
location 01h; the LSB is at location 02h.
0000h - 007Fh: Reserved
0080h: 128 byte PIROM size
0081- FFFFh: Reserved
7.5.1.3
PDA: Processor Data Address
This location provides the offset to the Processor Data Section. Writes to this register
have no effect.
Offset:
03h
Bit
Description
7:0
Processor Data Address
Byte pointer to the Processor Data section
00h: Processor Data section not present
01h - 0Dh: Reserved
0Eh: Processor Data section pointer value
0Fh-FFh: Reserved
Datasheet Volume 1 of 2
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INTEL [ INTEL ]
