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KTD-N0886-E
Feature Connector (J27)
7.11
Note Pull U/D Ioh/Iol
2
2M/
-
-
25/25mA O
-
25/25mA O
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
8/8mA
-
8/8mA
-
-
-
-
-
-
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, used to detect if the system case has been opened. This signal's status is
CASE_OPEN#
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.
PoWeR OK, signal is high if no power failures are detected. (This is not the same as the
PWR_OK
P_OK signal generated by ATX PSU).
(EXTernal BATtery) option for connecting + terminal of an external primary cell battery (2.5
EXT_BAT
- 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.
Page 38
Type Signal
PIN
I
CASE_OPEN#
1
S5#
3
PWR_OK
5
NC
-
7
PWR SB3V3
9
IOT
GPIO0
11 12
IOT
GPIO2
13 14
IOT
GPIO4
15 16
IOT
GPIO6
17 18
PWR GND
19 20
I
GPIO8
21 22
I
GPIO10
23 24
I
GPIO12
25 26
IOT
GPIO14
27 28
IOT
GPIO16
29 30
PWR GND
31 32
O
EGCLK
33 34
EGAD
35 36
PWR +12V
37 38
NC
-
39 40
PWR GND
41 42
PWR GND
43 44
KTQM87/mITX Users Guide
Signal
Type Ioh/Iol
2
SMBC
/4mA
4
SMBD
/4mA
6
EXT_BAT PWR -
8
-
NC
-
10
SB5V
PWR -
GPIO1
IOT
GPIO3
IOT
GPIO5
IOT
GPIO7
IOT
GND
PWR -
GPIO9
I
GPIO11
I
GPIO13
IOT
GPIO15
IOT
GPIO17
IOT
GND
PWR -
EGCS#
O
8/8mA
TMA0
O
GND
PWR -
-
NC
-
GND
PWR -
S3#
O
25/25mA -
Internal Connectors
Pull U/D Note
10K/
1
10K/
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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