Eurotech ACS-5151, User Manual

Page: 14 / 28

ACS-5151 – User’s Manual
14
How to connect the ACS-5151 to other PC/104 & PC/104-
Plus devices
The ISA Bus: J1 and J2
Connectors J1 and J2 carry the signals for the ISA Bus.
These signals match the definitions of the IEEE P996 standard.
J2
J1
Figure 5. ISA BUS layout
According to the PC/104 specifications, these connectors include KEY pins; these are filled holes in the
upper side and missing pins in the lower side of the bus. This is done to avoid the wrong insertion in/of
another module.
Pin # Use Signal Pin # Use Signal
1
ISA Bus IOCHK#
33
ISA Bus A14
2
ISA Bus Ground
34
ISA Bus DACK1#
3
ISA Bus D7
35
ISA Bus A13
4
ISA Bus RSTDRV
36
ISA Bus DRQ1
5
ISA Bus D6
37
ISA Bus A12
6
ISA Bus +5 Volts
38
ISA Bus REFRESH#
7
ISA Bus D5
39
ISA Bus A11
8
ISA Bus IRQ 9
40
ISA Bus ISACLK
9
ISA Bus D4
41
ISA Bus A10
10
ISA Bus -5 Volts
42
ISA Bus IRQ 7
11
ISA Bus D3
43
ISA Bus A9
12
ISA Bus DRQ2
44
ISA Bus IRQ 6
13
ISA Bus D2
45
ISA Bus A8
14
ISA Bus -12 Volts
46
ISA Bus IRQ 5
15
ISA Bus D1
47
ISA Bus A7
16
ISA Bus ZEROWS#
48
ISA Bus IRQ 4
17
ISA Bus D0
49
ISA Bus A6
18
ISA Bus +12 Volts
50
ISA Bus IRQ 3
19
ISA Bus IOCHRDY
51
ISA Bus A5
20
Not Connected Key
52
ISA Bus DACK2#
21
ISA Bus AEN
53
ISA Bus A4
22
ISA Bus SMEMW#
54
ISA Bus TC
23
ISA Bus A19
55
ISA Bus A3
24
ISA Bus SMEMR#
56
ISA Bus BALE