Kontron mITX-E38 - Manual (Page 34)

KTD-N0903-A Page 32 Internal Connectors
mITX-E38 Users Guide
Feature Connector (Feature – 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
SMBCLK SMBus Clock signal
SMBDAT 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
- 4.0 V) (– terminal connected to GND). The external battery is protected against charging
and can be used with/without the on-board battery installed.
3V3 Max. load is 0.75A (1.5A < 1 sec.)
5V +5V supply.
GPIO0..17
General Purpose Inputs / Output. These Signals may be controlled or monitored through
the use of the KT-API-V2 (Application Programming Interface).
EGCLK Extend GPIO Clock signal
EGAD Extend GPIO Address Data signal
EGCS# Extend GPIO Chip Select signal, active low
TMA0 Timer Output
+12V Max. load is 0.75A (1.5A < 1 sec.)
Note Pull U/D Ioh/Iol Type Signal PIN Signal Type Ioh/Iol Pull U/D Note
- - NC - 1 2 SMBCLK /4mA 10K/ 1
- 25/25mA O S5# 3 4 SMBDAT /4mA 10K/ 1
- 25/25mA O PWR_OK 5 6 EXT_BAT PWR - -
- - NC - 7 8 - NC - -
- - PWR SB3V3 9 10 SB5V PWR - -
- IOT GPIO0 11 12 GPIO1 IOT -
- IOT GPIO2 13 14 GPIO3 IOT -
- IOT GPIO4 15 16 GPIO5 IOT -
- IOT GPIO6 17 18 GPIO7 IOT -
- - PWR GND 19 20 GND PWR - -
- I GPIO8 21 22 GPIO9 I -
- I GPIO10 23 24 GPIO11 I -
- I GPIO12 25 26 GPIO13 IOT -
- IOT GPIO14 27 28 GPIO15 IOT -
- IOT GPIO16 29 30 GPIO17 IOT -
- - PWR GND 31 32 GND PWR - -
- 8/8mA O EGCLK 33 34 EGCS# O 8/8mA -
- 8/8mA EGAD 35 36 TMA0 O
- PWR +12V 37 38 GND PWR - -
- - NC - 39 40 - NC - -
- - PWR GND 41 42 GND PWR - -
- - PWR GND 43 44 S3# O 25/25mA -