B-12 Connector Pin AssignmentsISA EXPANSION BUS CONNECTOR PIN ASSIGNMENTSThe expansion slots signals, voltages, and grounds are supplied through the bus connectors.Table B-13 provides the pin assignments for the ISA expansion slots.Table B-13 ISA Expansion Slot Pin AssignmentsPin Direction Signal Pin Direction SignalA1 Input IOCHCK# B1 Ground GNDA2 Input/Output SD7 B2 Reset RESDRVA3 Input/Output SD6 B3 Power +5VA4 Input/Output SD5 B4 Input IRQ09A5 Input/Output SD4 B5 Power -5VA6 Input/Output SD3 B6 Input DRQ2A7 Input/Output SD2 B7 Power -12VA8 Input/Output SD1 B8 Input SRDY#(N0WS#)A9 Input/Output SD0 B9 Power +12VA10 Input IOCHRDY B10 Ground GNDA11 Output AEN B11 Output SMEMW#(SMWTC#)A12 Input/Output SA19 B12 Output SMEMR#(SMRDC#)A13 Input/Output SA18 B13 Input/Output IOW# (IOWC#)A14 Input/Output SA17 B14 Input/Output IOR# (IOWC#)A15 Input/Output SA16 B15 Output DACK3#A16 Input/Output SA15 B16 Input DRQ3A17 Input/Output SA14 B17 Output DACK1A18 Input/Output SA13 B18 Input DRQ1A19 Input/Output SA12 B19 Input/Output REFRESH#A20 Input/Output SA11 B20 Output BCLKA21 Input/Output SA10 B21 Input IRQ7A22 Input/Output SA9 B22 Input IRQ6A23 Input/Output SA8 B23 Input IRQ5A24 Input/Output SA7 B24 Input IRQ4A25 Input/Output SA6 B25 Input IRQ3A26 Input/Output SA5 B26 Output DACK2#A27 Input/Output SA4 B27 Output TCA28 Input/Output SA3 B28 Output BALEA29 Input/Output SA2 B29 Power +5V
