Isa Expansion Bus Connector Pinouts (J30, J31) - Compaq AlphaPC 164LX User Manual

4.2 ISA Expansion Bus Connector Pinouts
Table 4–2 shows the ISA expansion bus connector pinouts.
Table 4–2 ISA Expansion Bus Connector Pinouts (J30, J31)
Pin Signal
1 Gnd
5 Vdd
9 –5V
13 –12V
17 +12V
21 SMEMW#
25 IOW#
29 DACK3#
33 DACK1#
37 REFRESH#
41 IRQ7
45 IRQ5
49 IRQ3
53 TC
57 Vdd
61 Gnd
65 IOCS16#
69 IRQ11
73 IRQ15
77 DACK0#
81 DACK5#
85 DACK6#
89 DACK7#
93 Vdd
97 Gnd
Pin Signal
2 IOCHCK#
6 SD6
10 SD4
14 SD2
18 SD0
22 AEN
26 SA18
30 SA16
34 SA14
38 SA12
42 SA10
46 SA8
50 SA6
54 SA4
58 SA2
62 SA0
66 LA23
70 LA21
74 LA19
78 LA17
82 MEMW#
86 SD9
90 SD11
94 SD13
98 SD15
ISA Expansion Bus Connector Pinouts
Pin Signal
3 RSTDRV
7 IRQ9
11 DRQ2
15 ZEROWS#
19 Gnd
23 SMEMR#
27 IOR#
31 DRQ3
35 DRQ1
39 SYSCLK
43 IRQ6
47 IRQ4
51 DACK2#
55 BALE
59 OSC
63 MEMCS16#
67 IRQ10
71 IRQ12
75 IRQ14
79 DRQ0
83 DRQ5
87 DRQ6
91 DRQ7
95 MASTER#
— —
AlphaPC 164LX Connector Pinouts
Pin Signal
4 SD7
8 SD5
12 SD3
16 SD1
20 IOCHRDY
24 SA19
28 SA17
32 SA15
36 SA13
40 SA11
44 SA9
48 SA7
52 SA5
56 SA3
60 SA1
64 SBHE#
68 LA22
72 LA20
76 LA18
80 MEMR#
84 SD8
88 SD10
92 SD12
96 SD14
— —
4–3