Table of Contents
Advertisement
4.4.1
Connector X2 (Signal Levels)
Pin 1–50: ISA Bus
Pin
Signal
Description
1
GND
Ground
2
GND
Ground
3
SD14
ISA Data Bus
4
SD15
ISA Data Bus
5
SD13
ISA Data Bus
6
MASTER#
ISA 16-Bit Master
7
SD12
ISA Data Bus
8
DREQ7
ISA DMA Request 7
9
SD11
ISA Data Bus
10
DACK7#
ISA DMA Acknowledge 7
11
SD10
ISA Data Bus
12
DREQ6
ISA DMA Request 6
13
SD9
ISA Data Bus
14
DACK6#
ISA DMA Acknowledge 6
15
SD8
ISA Data Bus
16
DREQ5
ISA DMA Request 5
17
MEMW#
ISA Memory Write
18
DACK5#
ISA DMA Acknowledge 5
19
MEMR#
ISA Memory Read
20
DREQ0
ISA DMA Request 0
21
LA17
ISA Adress Bus (SA17)
22
DACK0#
ISA DMA Acknowledge 0
23
LA18
ISA Adress Bus (SA18)
24
IRQ14
ISA Interrupt Request 14 / ROM Chip Select
25
LA19
ISA Adress Bus (SA19)
26
IRQ15
ISA Interrupt Request 15
27
LA20
ISA Latchable Adress Bus
28
IRQ12
ISA Interrupt Request 12
29
LA21
ISA Latchable Adress Bus
30
IRQ11
ISA Interrupt Request 11
31
LA22
ISA Latchable Adress Bus
32
IRQ10
ISA Interrupt Request 10
33
LA23
ISA Latchable Adress Bus
34
IO16#
ISA 16-Bit I/O Access
35
GND
Ground
36
GND
Ground
37
SBHE#
ISA System Byte High Enable
38
M16#
ISA 16-Bit Memory Access
39
SA0
ISA Adress Bus
40
OSC
ISA Oscillator (CLK_ISA14#)
41
SA1
ISA Adress Bus
42
BALE
ISA Buffer Adress Latch Enable
43
SA2
ISA Adress Bus
44
TC
ISA Terminal Count
45
SA3
ISA Adress Bus
46
DACK2#
ISA DMA Acknowledge 2
47
SA4
ISA Adress Bus
48
IRQ3
ISA Interrupt Request 3
49
SA5
ISA Adress Bus
50
IRQ4
ISA Interrupt Request 4
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
-
IO-5
PU 4K7 5V
IO-5
PU 4K7 5V
IO-5
PU 4K7 5V
I-5
PU 1K 5V
IO-5
PU 4K7 5V
I-5
PD 4K7
IO-5
PU 4K7 5V
IO-5
-
IO-5
PU 4K7 5V
I-5
PD 4K7
IO-5
PU 4K7 5V
IO-5
-
IO-5
PU 4K7 5V
I-5
PD 4K7
IO-5
PU 4K7 5V
IO-5
-
IO-5
PU 4K75V
I-5
PD 47k
O-5
-
IO-5
-
O-5
-
IO-5
-
O-5
-
I-5
-
O-5
-
I-5
-
O-5
-
I-5
-
O-5
-
I-5
-
O-5
-
I-5
PU 1K 5V
PWR
-
PWR
-
IO-5
-
IO-5
PU 1K 5V
O-5
-
O-3,3
-
O-5
-
IO-5
-
O-5
-
IO-5
-
O-5
-
IO-5
-
O-5
-
I-5
PU 4K7 5V
O-5
-
I-5
PU 4K7 5V
23
4 ETX® Connectors
Comment
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Bootstrap PD 4k7
-
Bootstrap PD 4k7
-
-
-
-
-
-
Advertisement
Table of Contents
