Kontron KTQM87-mITX User Manual download pdf (Page 44)

KTD-N0886-A Page 42 Internal Connectors

KTQM87/mITX Users Guide

SPI Connector (J32) 7.14

The SPI Connector is normally not used. If however a SPI BIOS is connected via the SPI Connector then the

board will attempt to boot from it.

Note

Pull U/D

Ioh/Iol

Type

Signal

Type

Ioh/Iol

Pull U/D

Note

CLK

SB3V3

PWR

CS0#

ADDIN

/10K

10K/

MOSI

ISOLATE#

100K

MISO

GND

PWR

SPI_IO2_#WP

SPI_IO3_#HOLD

Signal Description

CLK

Serial Clock

SB3V3

3.3V Standby

Voltage power line. Normally output power, but when Motherboard is

turned off then the on-board SPI Flash can be 3.3V power sourced via this pin.

CS0# CS0# Chip Select 0, active low.

ADDIN ADDIN input signal must be NC.

MOSI Master Output, Slave Input.

ISOLATE#

The ISOLATE# input, active low, is normally NC, but must be connected to GND when

programming the

SPI flash. Power Supply to the Motherboard must be turned off when

loading SPI flash. The pull up resistor is connected via diode to 5VSB.

MISO Master Input, Slave Output

SPI_IO2_#WP

SPI Data I/O: A bidirectional signal used to support Dual IO Fast Read, Quad IO Fast Read

and Quad Output Fast Read modes. The signal is not used in Dual Output Fast Read mode.

SPI_IO3_#HOLD

SPI Data I/O: A bidirectional signal used to support Dual IO Fast Read, Quad IO Fast Read

and Quad Output Fast Read modes. The signal is not used in Dual Output Fast Read mode.

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Kontron KTQM87-mITX User Manual Page 44

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