Kontron mITX-BW, User Manual

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mITX-BW – User Guide, Rev. 1.6
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Pin Signal Type Ioh / Iol Pull U / D Note
21 GPIO8 I
22 GPIO9 I
23 GPIO10 I
24 GPIO11 I
25 GPIO12 I
26 GPIO13 IOT
27 GPIO14 IOT
28 GPIO15 IOT
29
GPIO16 IOT
30 GPIO17 IOT
31
GND PWR
32 GND PWR
33 EGCLK O 8 / 8 mA
34 EGCS# O 8 / 8 mA
35 EGAD 8 / 8 mA
36 TMA0 O
37 +12 V PWR
38 GND PWR
39 NC I 1 kΩ Pull-up to SB3V3
40
NC O 1 kΩ Pull-up to SB3V3
41 GND PWR
42 GND PWR
43 GND PWR
44 S3# O 25 / 25 mA
Table 40: Signal description
Signal Description
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 - 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.
GPIO0..17
General Purpose Inputs / Output. These Signals may be controlled or monitored through the use of
the KT-API-V2 (Application Programming Interface). See details in table below.
EGCLK Extend GPIO Clock signal
EGAD
Extend GPIO Address Data signal
EGCS# Extend GPIO Chip Select signal, active low
TMA0
Timer Output
+12 V Max. load is 0.75 A (1.5 A < 1 sec.)