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©
2022
congatec
GmbH
CET0m10
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5.21
Module Detection - Internal Use Only
Connector X89 is for detecting the COM Express module presence.
Connector Type
X89: Molex 51021-0200
5.22
Feature Connector
Table 55 X53 - Feature Connector
Pin Signal
Description
Pin Signal
Description
1
+5V (500 mA fuse)
2
5V_SB (500 mA fuse)
3
+5V (470
Ω
)
LED anode voltage with 470
Ω
resistor 4
Hard Disk Activity
Shows activity on hard disk interface (open-drain output for LED
cathode)
5
I2C_DAT
General purpose I²C port data I/O line 6
SMB_CLK
System Management Bus clock line
7
I2C_CLK
General purpose I²C port clock output
8
SMB_DATA
System Management Bus bidirectional data line
9
N.C
Not connected
10
GPO0
General Purpose Output 0
11
N.C
Not connected
12
GPO1
General Purpose Output 1
13
PS_ON#
Power Supply On (active low).
14
GPO2
General Purpose Output 2
15
SUS_S3#
Indicates system is in Suspend to RAM
state. Active low output.
16
GPO3
General Purpose Output 3
17
GND
Power Ground
18
GND
Power Ground
19
THRMTRIP#
Active low output indicating that the
CPU has entered thermal shutdown
20
SMB_ALERT#
System Management Bus Alert – active low input can be used to
generate an SMI# (System Management Interrupt) or to wake the
system (connect to open-drain pin)
21
GPI1
General Purpose Input 1
22
SUS_S4#
Indicates systems is in Suspend to Disk state. Active low output.
23
SUS_STAT#
Indicates imminent suspend operation;
used to notify LPC devices
24
GPI0
General Purpose Input 0
25
GPI2
General Purpose Input 2
26
SUS_S5#
Indicates systems is in Soft Off state
27
WDT
Watch Dog Timer output
28
THRM#
Input from off-module temp sensor indicating an over-temp
situation (connect to open-drain pin)
29
GPI3
General Purpose Input 3
30
LID#
Module input signal, generation a LID close or open event
31
BATLOW#
Indicates that external battery is low
(connect to open-drain pin)
32
WAKE1#
General purpose wake up signal. May be used to implement
wake-up on PS2 keyboard or mouse activity (connect to open
drain pin)
X89
40
38
39
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
40
38
39
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
40
38
39
37
36
35
34
33
32
31
X53
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
4
3
1
44
42
43
41
6
5
2
1