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4.6.2
Connector X4 (Signal Levels)
Pin 1–50
IDE1|IDE2|ETHERNET|POWER/PM|MISC
Pin
Signal
Description
1
GND
Ground
2
GND
Ground
3
5V_SB
Supply of internal suspend Circuit
4
PWGIN
Power Good / Reset Input
5
PS_ON
Power Supply On
6
SPEAKER
Speaker Output
7
PWRBTN#
Power Button
8
BATT
Battery Supply
9
KBINH
Keyboard Inhibit Control Input
10
LILED
Ethernet Link LED
11
RSMRST#
Resume Reset Input
12
ACTLED
Ethernet Activity LED
13
NC
-
14
SPEEDLED
Ethernet Speed LED
15
NC
-
16
I2CLK
I2C Bus Clock
17
VCC
Power +5V
18
VCC
Power +5V
19
OVCR#
Over Current Detect for USB
20
NC
-
21
EXTSMI#
System Management Interrupt Input
22
I2DAT
I2C Bus Data
23
SMBCLK
SM Bus Clock
24
SMBDATA
SM Bus Data
25
SIDE_CS3#
Secondary IDE Chip Select Channel 1
26
SMBALERT
External SMB Alert
27
SIDE_CS1#
Secondary IDE Chip Select Channel 0
28
NC
-
29
SIDE_A2
Secondary IDE Address Bus
30
PIDE_CS3#
Primary IDE Chip Select Channel 1
31
SIDE_A0
Secondary IDE Address Bus
32
PIDE_CS1#
Primary IDE Chip Select Channel 0
33
GND
Ground
34
GND
Ground
35
PDIAG_S
80-conductor IDE cable Channel 1
36
PIDE_A2
Primary IDE Address Bus
37
SIDE_A1
Secondary IDE Address Bus
38
PIDE_A0
Primary IDE Address Bus
39
SIDE_INTRQ
Secondary IDE Interrupt Request
40
PIDE_A1
Primary IDE Address Bus
41
PM_BATLOW
Battery Low
42
GPE1#
External general purpose input 1
43
SIDE_AK#
Secondary IDE DMA Acknowledge
44
PIDE_INTRQ
Primary IDE Interrupt Request
45
SIDE_RDY
Secondary IDE Ready
46
PIDE_AK#
Primary IDE DMA Acknowledge
47
SIDE_IOR#
Secondary IDE IO Read
48
PIDE_RDY
Primary IDE Ready
49
VCC
Power +5V
50
VCC
Power +5V
Note:
The termination resistors in this table are already mounted on the ETX® board. Please refer to the design
guide for information about additional termination resistors.
Kontron User's Guide ETX®-CN8
Type
Termination
PWR
-
PWR
-
I
-
I
-
O-5
PU 4k7 5V
O-3.3
-
I-5
-
I
-
I-5
PU 4k7 3.3V
O-3.3
-
I-3.3
PU 4k7 3.3V
O-3.3
-
nc
-
O-3.3
-
nc
-
O-5
PU 2k2 5V
PWR
-
PWR
-
I-3.3
PU 8k2 3.3V
nc
-
I-3.3
PU 4k7 3.3V
IO-5
PU 2k2 5V
O-3.3
PU 2k2 3.3V
IO-3.3
PU 2k2 3.3V
O-3.3
-
I-3.3
PU 10k 3.3V
O-3.3
-
nc
-
O-3.3
-
O-3.3
-
O-3.3
-
O-3.3
-
PWR
-
PWR
-
I-3.3
PU 10k 3.3V
O-3.3
-
O-3.3
-
O-3.3
-
I-3.3
PU 10k 3.3V
O-3.3
-
I-3.3
PU 10k 3.3V
I-3.3
PU 4k7 3.3V
O-3.3
-
I-3.3
PU 10k 3.3V
I-3.3
PU 4k7 3.3V
O-3.3
-
O-3.3
-
I-3.3
PU 4k7 3.3V
PWR
-
PWR
-
33
4 ETX® Connectors
Comment
-
-
-
-
-
-
-
-
-
-
-
-
-
on at 100Mb/s
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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