4.9PC/104 Bus Connectors
The PC/104 bus is essentially identical to the ISA Bus except for the physical design. It specifies two pin and socket connectors for the bus signals. A
In the pinout figures below, the tops correspond to the left edge of the connector when the board is viewed from the primary side (side with the CPU chip and the female end of the PC/104 connector) and the board is oriented so that the PC/104 connectors are along the bottom edge of the board.
View from Top of Board
J2: PC/104 | J1: PC/104 | ||||||
Ground |
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| Ground | IOCHCHK- |
|
| Ground |
D0 | C0 | A1 | B1 | ||||
MEMCS16- | D1 | C1 | SBHE- | SD7 | A2 | B2 | RESET |
IOCS16- | D2 | C2 | LA23 | SD6 | A3 | B3 | +5V |
IRQ10 | D3 | C3 | LA22 | SD5 | A4 | B4 | IRQ9 |
IRQ11 | D4 | C4 | LA21 | SD4 | A5 | B5 | |
IRQ12 | D5 | C5 | LA20 | SD3 | A6 | B6 | DRQ2 |
IRQ15 | D6 | C6 | LA19 | SD2 | A7 | B7 | |
IRQ14 | D7 | C7 | LA18 | SD1 | A8 | B8 | 0WS- |
DACK0- | D8 | C8 | LA17 | SD0 | A9 | B9 | +12V |
DRQ0 | D9 | C9 | MEMR- | IOCHRDY | A10 | B10 | Key (pin cut) |
DACK5- | D10 | C10 | MEMW- | AEN | A11 | B11 | SMEMW- |
DRQ5 | D11 | C11 | SD8 | SA19 | A12 | B12 | SMEMR- |
DACK6- | D12 | C12 | SD9 | SA18 | A13 | B13 | IOW- |
DRQ6 | D13 | C13 | SD10 | SA17 | A14 | B14 | IOR- |
DACK7- | D14 | C14 | SD11 | SA16 | A15 | B15 | DACK3- |
DRQ7 | D15 | C15 | SD12 | SA15 | A16 | B16 | DRQ3 |
+5V | D16 | C16 | SD13 | SA14 | A17 | B17 | DACK1- |
MASTER- | D17 | C17 | SD14 | SA13 | A18 | B18 | DRQ1 |
Ground | D18 | C18 | SD15 | SA12 | A19 | B19 | Refresh- |
Ground | D19 | C19 | Key (pin cut) | SA11 | A20 | B20 | SYSCLK |
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|
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| SA10 | A21 | B21 | IRQ7 |
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|
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| SA9 | A22 | B22 | IRQ6 |
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|
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| SA8 | A23 | B23 | IRQ5 |
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| SA7 | A24 | B24 | IRQ4 |
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| SA6 | A25 | B25 | IRQ3 |
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|
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| SA5 | A26 | B26 | DACK2- |
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| SA4 | A27 | B27 | TC |
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| SA3 | A28 | B28 | BALE |
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| SA2 | A29 | B29 | +5V |
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| SA1 | A30 | B30 | OSC |
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| SA0 | A31 | B31 | Ground |
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|
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| Ground | A32 | B32 | Ground |
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