FSPI_​MOSI_​IO0

Data

SPI serial output data from PCH to the SPI flash device. This Pin will also function as Input during Dual and Quad I/O operation

FSPI_​MISO_​IO1

Data

SPI serial input data from the SPI flash device to PCH. This Pin will also function as Output during Dual and Quad I/O operation

FSPI_​IO2

Data

SPI serial Input/Output data to comprehend the support for the Quad I/O operation

FSPI_​IO3

Data

SPI serial Input/Output data to comprehend the support for the Quad I/O operation

FSPI_​CLK

Clock

SPI Clock output from PCH

FSPI_​CS0_​N

Chip Select

SPI chip select 0

FSPI_​CS1_​N

Chip Select

SPI chip select 1 signal is used as the second chip select, when 2 flash devices are used. Do not use when only one SPI flash is used.

FSPI_​CS2_​N

Chip Select

Chip Select 2 is dedicated to support TPM on SPI.