11 feature connector (j27), Feature connector (j27) – Kontron KTQM87-mITX User Manual
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
PIN
Signal
Type Ioh/Iol Pull U/D Note
2
2M/
-
I
CASE_OPEN#
1 2
SMBC
/4mA
10K/
1
-
25/25mA O
S5#
3 4
SMBD
/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 -