Kontron KTH81-mITX Manual de usuario descargar pdf (Pagina 53)

KTD-N0882-H Page 53 Internal Connectors

KTQ87/KTH81 Users Guide

7.14 SPI Connector (SPI_HEAD)

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 PIN Signal Type Ioh/Iol Pull U/D Note

1 - CLK 1 2 SB3V3 PWR - -

- I CS0# 3 4 ADDIN IO /10K

10K/ - NC 5 6 NC - - -

10K/

MOSI

ISOLATE#

100K

- IO MISO 9 10 GND PWR - -

1K IO SPI_IO2_#WP 11 12 SPI_IO3_#HOLD IO 1K

7.15 LPC Connector (J30)

The LPC connector (Flex board only) is in general unsupported. Only under special circumstances may the

LPC interface be of interest.

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.

Note

Pull

U/D

Ioh/Iol Type Signal PIN Signal Type Ioh/Iol

Pull

U/D

Note

- - PWR LPC CLK 1 2 GND

- - PWR LPC FRAME# 3 KEY

LPC RST# 5 6 +5V

LPC AD3 7 8 LPC AD2

+3V3 9 10 LPC AD1

LPC AD0

GND

SMB_CLK 13 14 SMB_DATA

SB3V3 15 16 LPC SERIRQ

GND 17 18 CLKRUN#

SUS_STAT# 19 20 TPM_DRQ#0

1 2 ... 48 49 50 51 52 53 54 55 56 57 58 ... 97 98

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Kontron KTH81-mITX Manual de usuario Pagina 53

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