Kontron mITX-BDW-U User Manual page 39

Feature Connector Pinout
Note Pull Ioh/
U/D Iol
1 1M/
25 mA
/25 mA
25 mA
/25 mA
8/8 mA
8/8 mA
2 1K/
1) Pull-up to on-board Battery.
2) Pull-up to SB3V3.
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 V -
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 0.75 A (1.5 A < 1 sec.)
SB5 V StandBy +5 V supply.
TOUCH_I2C_DAT Serial I/O – I2 C interface data Line
TOUCH_I2C_CLK Serial I/O – I2 C interface clock Line
TOUCH_RST# Serial I/O –interface reset
TOUCH_INTR# Serial I/O –interrupt line
GPIO0..17 General Purpose Inputs / Output. These Signals may be controlled or monitored through the use
of the KT-API-V2 (Application Programming Interface).
www.kontron.com
Type Signal
I CASE_OPEN#
O S5#
O PWR_OK
I TOUCH_RST#
PWR SB3V3
IOT GPIO0
IOT GPIO2
IOT GPIO4
IOT GPIO6
PWR GND
I GPIO8
I GPIO10
I GPIO12
IOT GPIO14
IOT GPIO16
PWR GND
O EGCLK
EGAD
PWR +12 V
I TOUCH_I2C_C
LK
PWR GND
PWR GND
PIN Signal
1 2 SMBC
3 4 SMBD
5 6 EXT_BAT
7 8 TOUCH_INTR#
9 10 SB5V
11 12 GPIO1
13 14 GPIO3
15 16 GPIO5
17 18 GPIO7
19 20 GND
21 22 GPIO9
23 24 GPIO11
25 26 GPIO13
27 28 GPIO15
29 30 GPIO17
31 32 GND
33 34 EGCS#
35 36 TMA0
37 38 GND
39 40 TOUCH_I2C_D
AT
41 42 GND
43 44 S3#
mITX-BDW-U – User Guide, Rev. 1.6
Type Ioh/ Pull
Iol U/D
/4 mA 10K/
/4 mA 10K/
PWR
O
PWR
IOT
IOT
IOT
IOT
PWR
I
I
IOT
IOT
IOT
PWR
O 8/8 mA
O
PWR
I/O 1K/
PWR
O 25 mA
/25mA
Note
2
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