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4 ETX® connectors
Kontron User's Guide ETX CD 34
4.6.2 Connector X4 (Signal Levels)
Pin 1–50: [Power | IDE |Ethernet | Power control | Misc]
Pin Si
g
na
l
Descri
p
tion T
yp
e Termination Commen
t
1 GND Ground PWR - -
2 GND Ground PWR - -
3 5V_SB Su
pp
l
y
of internal sus
p
end Circui
t
I - -
4 PWGIN Power Good
/
Reset In
p
u
t
I - -
5 PS_ON Power Su
pp
l
y
On O-3,3 PU 10k 3,3V -
6 SPEAKER S
p
eaker Out
p
u
t
O-3.3 - int. PD 20k
(
ICH7-M
)
7 PWRBTN# Power Button I-3,3 PU 4k7 3,3V -
8 BAT
T
Batter
y
Su
pp
l
y
I - -
9 KBINH Ke
y
board Inhibit Control In
p
u
t
I-5 - -
10 LILED Ethernet Link LED O-3,3 - -
11 RSMRST# Resume Rese
t
nc PU 10k 3,3V Not su
pp
orted
12 ACTLED Ethernet Activit
y
LED O-3,3 - -
13 ROMKBCS# - nc - not su
pp
orted
14 SPEEDLED Ethernet S
p
eed LED O-3,3 - on at 100Mb
/
s
15 EXT_PRG - nc - not su
pp
orted
16 I2CLK I2C Bus Clock O-5 PU 2k2 5V -
17 VCC Power +5V PWR - -
18 VCC Power +5V PWR - -
19 OVCR# Over Current Detect for USB I-3,3 PU 10k 3,3V -
20 GPCS# - nc - not su
pp
orted
21 EXTSMI# S
y
stem Mana
g
ement In
t
erru
p
t In
p
u
t
I-3,3 PU 10k 3,3V -
22 I2DA
T
I2C Bus Data IO-5 PU 2k2 5V -
23 SMBCLK SM Bus Clock O-3,3 PU 2k2 3,3V -
24 SMBDATA SM Bus Data IO-3,3 PU 2k2 3,3V -
25 SIDE_CS3# - nc - not su
pp
orted
26 SMBALER
T
SMB Aler
t
I-3,3 PU 2k2 3,3V -
27 SIDE_CS1# - nc - -
28 DASP_S - nc - not su
pp
orted
29 SIDE_A2 - nc - -
30 PIDE_CS3# Primar
y
IDE Chi
p
Select Channel 1 O-3,3 - -
31 SIDE_A0 - nc - -
32 PIDE_CS1# Primar
y
IDE Chi
p
Select Channel 0 O-3,3 - -
33 GND Ground PWR - -
34 GND Ground PWR - -
35 PDIAG_S - nc - -
36 PIDE_A2 Primar
y
IDE Adress Bus O-3,3 - -
37 SIDE_A1 - nc - -
38 PIDE_A0 Primar
y
IDE Adress Bus O-3,3 - -
39 SIDE_INTRQ - nc - -
40 PIDE_A1 Primar
y
IDE Adress Bus O-3,3 - -
41 PM_BATLOW# Batter
y
Low I-3,3 PU 8k2 3,3V -
42 GPE1# General Pur
p
ose Power Event 1 I-3,3 PU 10k 3,3V GPIO13 on ICH7-M
43 SIDE_AK# - nc - -
44 PIDE_INTRQ Primar
y
IDE Interru
p
t Re
q
eues
t
I-3,3 PU 8k2 3,3V -
45 SIDE_RDY - nc - -
46 PIDE_AK# Primar
y
IDE DMA Acknowled
g
e O-3,3 - -
47 SIDE_IOR# - nc - -
48 PIDE_RDY Primar
y
IDE Read
y
I-3,3 PU 4k7,3V -
49 VCC Power +5V PWR - -
50 VCC Power +5V PWR - -
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.