Intel PCH-LP, Programming Manual

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Descriptor Overview
Note: “n” is an integer denoting the index of the Intel
®
ME VSCC table.
Bits Description
31:24 Reserved
23:16
SPI Component Device ID 1. This field identifies the second byte of the Device ID of the SPI
Flash Component. This is the third byte returned by the Read JEDEC-ID command (opcode 9Fh).
15:8
SPI Component Device ID 0. This field identifies the first byte of the Device ID of the SPI Flash
Component. This is the second byte returned by the Read JEDEC-ID command (opcode 9Fh).
7:0
SPI Component Vendor ID. This field identifies the one byte Vendor ID of the SPI Flash
Component. This is the first byte returned by the Read JEDEC-ID command (opcode 9Fh).