Spi Connector (J32) - Kontron KTQM87/mITX User Manual

KTD-N0886-E

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
1 -
-
10K/
10K/
-
1K
Signal Description
CLK Serial Clock
3.3V Standby Voltage power line. Normally output power, but when Motherboard is
SB3V3
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.
The ISOLATE# input, active low, is normally NC, but must be connected to GND when
ISOLATE# 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 Data I/O: A bidirectional signal used to support Dual IO Fast Read, Quad IO Fast Read
SPI_IO2_#WP
and Quad Output Fast Read modes. The signal is not used in Dual Output Fast Read mode.
SPI Data I/O: A bidirectional signal used to support Dual IO Fast Read, Quad IO Fast Read
SPI_IO3_#HOLD
and Quad Output Fast Read modes. The signal is not used in Dual Output Fast Read mode.
Page 42
Signal PIN
CLK 1 2
I CS0# 3 4
- NC 5 6
IO MOSI 7 8
IO MISO 9 10
IO SPI_IO2_#WP 11 12
KTQM87/mITX Users Guide
Signal Type Ioh/Iol Pull U/D Note
SB3V3 PWR
ADDIN IO
NC -
ISOLATE# IO
GND PWR
SPI_IO3_#HOLD IO
Internal Connectors
- -
/10K
- -
100K
- -
1K