Kontron mITX-BDW-U, User Manual

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mITX-BDW-U – User Guide, Rev. 1.6
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Feature Connector Pinout
Note Pull
U/D Ioh/
Iol Type Signal PIN Signal Type Ioh/
Iol Pull
U/D Note
1 1M/ I CASE_OPEN# 1 2 SMBC /4 mA 10K/
25 mA
/25 mA O S5# 3 4 SMBD /4 mA 10K/
25 mA
/25 mA O PWR_OK 5 6 EXT_BAT PWR
I TOUCH_RST# 7 8 TOUCH_INTR# O
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
8/8 mA O EGCLK 33 34 EGCS# O 8/8 mA
8/8 mA EGAD 35 36 TMA0 O
PWR +12 V 37 38 GND PWR
2 1K/ I TOUCH_I2C_C
LK 39 40 TOUCH_I2C_D
AT I/O 1K/ 2
PWR GND 41 42 GND PWR
PWR GND 43 44 S3# O 25 mA
/25mA
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 conn 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 S5 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).