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2–8 System Configuration and Connectors
AlphaPC 164SX Connector Pinouts
2.7.2 ISA Expansion Bus Connector Pinouts
Table 2–3 shows the ISA expansion bus connector pinouts.
Table 2–3 ISA Expansion Bus Connector Pinouts (J22, J23)
Pin Signal Pin Signal Pin Signal Pin Signal
1 Gnd 2 IOCHCK# 3 RSTDRV 4 SD7
5 Vdd 6 SD6 7 IRQ9 8 SD5
9 –5V 10 SD4 11 DRQ2 12 SD3
13 –12V 14 SD2 15 ZEROWS# 16 SD1
17 +12V 18 SD0 19 Gnd 20 IOCHRDY
21 SMEMW# 22 AEN 23 SMEMR# 24 SA19
25 IOW# 26 SA18 27 IOR# 28 SA17
29 DACK3# 30 SA16 31 DRQ3 32 SA15
33 DACK1# 34 SA14 35 DRQ1 36 SA13
37 REFRESH# 38 SA12 39 SYSCLK 40 SA11
41 IRQ7 42 SA10 43 IRQ6 44 SA9
45 IRQ5 46 SA8 47 IRQ4 48 SA7
49 IRQ3 50 SA6 51 DACK2# 52 SA5
53 TC 54 SA4 55 BALE 56 SA3
57 Vdd 58 SA2 59 OSC 60 SA1
61 Gnd 62 SA0 63 MEMCS16# 64 SBHE#
65 IOCS16# 66 LA23 67 IRQ10 68 LA22
69 IRQ11 70 LA21 71 IRQ12 72 LA20
73 IRQ15 74 LA19 75 IRQ14 76 LA18
77 DACK0# 78 LA17 79 DRQ0 80 MEMR#
81 DACK5# 82 MEMW# 83 DRQ5 84 SD8
85 DACK6# 86 SD9 87 DRQ6 88 SD10
89 DACK7# 90 SD11 91 DRQ7 92 SD12
93 Vdd 94 SD13 95 MASTER# 96 SD14
97 Gnd 98 SD15 —— ——