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ISA Expansion Slot Pin Assignments
Pin | Direction | Signal | Pin | Direction | Signal |
A28 | Input/Output | SA3 | B28 | Output | BALE |
A29 | Input/Output | SA2 | B29 | Power | +5V |
A30 | Input/Output | SA1 | B30 | Output | OSC |
A31 | Input/Output | SA0 | B31 | Ground | Ground |
C1 | Input/Output | SBHE# | D1 | Input | MEMCS16# |
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| (M16#) |
C2 | Input/Output | LA23 | D2 | Input | IOCS16# |
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| (IO16#) |
C3 | Input/Output | LA22 | D3 | Input | IRQ10 |
C4 | Input/Output | LA21 | D4 | Input | IRQ11 |
C5 | Input/Output | LA20 | D5 | Input | IRQ12 |
C6 | Input/Output | LA19 | D6 | Input | IRQ15 |
C7 | Input/Output | LA18 | D7 | Input | IRQ14 |
C8 | Input/Output | LA17 | D8 | Output | DACK0# |
C9 | Input/Output | MEMR# | D9 | Input | DRQ0 |
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| (MRDC#) |
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C10 | Input/Output | MEMW# | D10 | Output | DACK5# |
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| (MWTC#) |
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C11 | Input/Output | SD8 | D11 | Input | DRQ5 |
C12 | Input/Output | SD9 | D12 | Output | DACK6# |
C13 | Input/Output | SD10 | D13 | Input | DRQ6 |
C14 | Input/Output | SD11 | D14 | Output | DACK7# |
C15 | Input/Output | SD12 | D15 | Input | DRQ7 |
C16 | Input/Output | SD13 | D16 | Power | +5V |
C17 | Input/Output | SD14 | D17 | Input | Master16# |
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| (MASTER#) |
C18 | Input/Output | SD15 | D18 | Ground | GND |
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