15 spi connector (spi) (j40), Spi connector (spi) (j40), Internal connectors – Kontron KTQ67-FLEX MED User Manual

Page 47

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KTQ67/Flex -Medical Users Guide

KTD-N0849-D Page 47

6.15

SPI Connector (SPI) (J40)

The SPI Connector is normally not used. If however a SPI BIOS is connected via the SPI Connector
then the board will try to boot on it.

Note Pull U/D Ioh/Iol Type Signal

PIN

Signal

Type Ioh/Iol Pull U/D Note

-

CLK

1

2

SB3V3

PWR

-

-

-

I

CS0#

3

4

ADDIN

IO

/10K

10K/

-

NC

5

6

NC

-

-

-

10K/

IO

MOSI

7

8

ISOLATE#

IO

/10K

-

IO

MISO

9 10

GND

PWR

-

-



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
loading 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

Internal Connectors

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