4 ETX® connectors

Kontron User's Guide ETX CD 20

4.3.1 Connector X1 Signal Levels
Pin 1-50 [Power | PCI |USB | AUDIO]
Pin Si
g
na
l

Descri

tion T
yp
eTermination Commen
t

1 GND Ground PWR --
2 GND Ground PWR --
3 PCICLK3 PCI Clock Slot 3 O-3,3 --
4 PCICLK4 PCI Clock Slot 4 O-3,3 --
5 GND Ground PWR --
6 GND Ground PWR --
7 PCICLK1 PCI Clock Slot 1 O-3,3 --
8 PCICLK2 PCI Clock Slot 2 O-3,3 --
9 REQ3# PCI Bus Re
q
uest 3 I-3,3 PU 8k23.3V 8k2 Ohm Resistors
10 GNT3# PCI Bus Grant 3 O-3,3 --
11 GNT2# PCI Bus Grant 2 O-3,3 --
12 3V Power +3,3V PWR --
13 REQ2# PCI Bus R e
q
uest 2 I-3,3 PU 8k23.3V 8k2 Ohm Resistors
14 GNT1# PCI Bus Grant 1 O-3,3 --
15 REQ1# PCI Bus R e
q
uest 1 I-3,3 PU 8k23.3V 8k2 Ohm Resistors
16 3V Power +3,3V PWR --
17 GNT0# PCI Bus Grant 0 O-3,3 --
18 nc - nc -Reserved
19 VCC Power +5V PWR --
20 VCC Power +5V PWR --
21 SERIRQ Serial Interru
p
t Re
q
es
t
IO-3,3 -12mA Source sink
22 REQ0# PCI Bus R e
q
uest 0 I-3,3 PU 8k23.3V 8k2 Ohm Resistors
23 AD0 PCI Adress & Data Bus line IO-3,3 -
24 3V Power +3,3V PWR --
25 AD1 PCI Adress & Data Bus line IO-3,3 --
26 AD2 PCI Adress & Data Bus line IO-3,3 --
27 AD4 PCI Adress & Data Bus line IO-3,3 --
28 AD3 PCI Adress & Data Bus line IO-3,3 --
29 AD6 PCI Adress & Da
t
a Bus line IO-3,3 --
30 AD5 PCI Adress & Data Bus line IO-3,3 --
31 CBE0# PCI Bus Command and B
y
te enables 0 IO-3,3 --
32 AD7 PCI Adress & Data Bus line IO-3,3 --
33 AD8 PCI Adress & Data Bus line IO-3,3 --
34 AD9 PCI Adress & Data Bus line IO-3,3 --
35 GND Ground PWR --
36 GND Ground PWR --
37 AD10 PCI Adress & Data Bus line IO-3,3 --
38 AUXAL Auxiliar
y
Line In
p
ut Lef
t
IPD 4k7ASGND 1:2 bleeder
39 AD11 PCI Adress & Data Bus line IO-3,3 --
40 MIC Micro
p
hone In
p
u
t
I - -
41 AD12 PCI Adress & Data Bus line IO-3,3 --
42 AUXAR Auxiliar
y
Line In
p
ut Ri
g
h
t
IPD 4k7ASGND 1:2 bleeder
43 AD13 PCI Adress & Data Bus line IO-3,3 --
44 ASVCC Analo
g
Su
pp
l
y
of Sound Controller O-5 --
45 AD14 PCI Adress & Data Bus line IO-3,3 --
46 SNDL Audio Out Lef
t
O - -
47 AD15 PCI Adress & Data Bus line IO-3,3 --
48 ASGND Analo
g
Ground of Sound Controller P - -
49 CBE1# PCI Bus Command and B
y
te enables 1 IO-3,3 --
50 SNDR Audio Out Ri
g
h
t
O - -

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.