Kontron KTQM87-mITX User Manual download pdf (Page 40)

KTD-N0886-A Page 38 Internal Connectors

KTQM87/mITX Users Guide

Feature Connector (J27) 7.11

Notes: 1. Pull-up to +3V3Dual (+3V3 or SB3V3). 2. Pull-up to on-board Battery. 3. Pull-up to +3V3.

Signal Description

CASE_OPEN#

CASE OPEN, used to detect if the system case has been opened. This signal’s status is

readable, so it may be used like a GPI when the Intruder switch is not required.

SMBC SMBus Clock signal

SMBD SMBus Data signal

S3#

S3 sleep mode, active low output, optionally used to deactivate external system.

S5#

S5 sleep mode, active low output, optionally used to deactivate external system.

PWR_OK

PoWeR OK, signal is high if no power failures are detected. (This is not the same as the

P_OK signal generated by ATX PSU).

EXT_BAT

(EXTernal BATtery) option for connecting + terminal of an external primary cell battery (2.5

- 3.47 V) (–

terminal connected to GND). The external battery is protected against charging

and can be used with/without the on-board battery installed.

SB3V3 Max. load is 0.75A (1.5A < 1 sec.)

SB5V StandBy +5V supply.

Note

Pull U/D

Ioh/Iol

Type

Signal

Type

Ioh/Iol

Pull U/D

Note

2M/

CASE_OPEN#

SMBC

/4mA

10K/

25/25mA

S5#

SMBD

/4mA

10K/

25/25mA

PWR_OK

EXT_BAT

PWR

SB3V3

SB5V

PWR

IOT

GPIO0

GPIO1

IOT

GPIO2

GPIO3

IOT

GPIO4

GPIO5

IOT

GPIO6

GPIO7

IOT

PWR

GND

PWR

GPIO8

GPIO9

GPIO10

GPIO11

GPIO12

GPIO13

IOT

GPIO14

GPIO15

IOT

GPIO16

GPIO17

IOT

PWR

GND

PWR

8/8mA

EGCLK

EGCS#

8/8mA

EGAD

TMA0

PWR

+12V

GND

PWR

GND

PWR

GND

S3#

25/25mA

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 ... 109 110

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Kontron KTQM87-mITX User Manual Page 40

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