Appendix B
Bus Signal Assignments
PIN | J1/P1 | J1/P1 | J2/P2 | J2/P2 |
Number | Row A | Row B | Row C | Row D |
0 | 0V | 0V | ||
1 | 0V | |||
2 | SD7 | RESET | LA23 | |
3 | SD6 | +5V | LA22 | IRQ10 |
4 | SD5 | IRQ9 | LA21 | IRQ11 |
5 | SD4 | LA20 | IRQ12 | |
6 | SD3 | DRQ2 | LA19 | IRQ15 |
7 | SD2 | LA18 | IRQ14 | |
8 | SD1 | LA17 | ||
9 | SD0 | +12V | DRQ0 | |
10 | IOCHRDY | KEY | ||
11 | AEN | SD8 | DRQ5 | |
12 | SA19 | SD9 | ||
13 | SA18 | SD10 | DRQ6 | |
14 | SA17 | SD11 | ||
15 | SA16 | SD12 | DRQ7 | |
16 | SA15 | DRQ3 | SD13 | +5V |
17 | SA14 | SD14 | ||
18 | SA13 | DRQ1 | SD15 | 0V |
19 | SA12 | KEY | 0V | |
20 | SA11 | CLK |
|
|
21 | SA10 | IRQ7 |
|
|
22 | SA9 | IRQ6 |
|
|
23 | SA8 | IRQ5 |
|
|
24 | SA7 | IRQ4 |
|
|
25 | SA6 | IRQ3 |
|
|
26 | SA5 |
|
| |
27 | SA4 | TC |
|
|
28 | SA3 | BALE |
|
|
29 | SA2 | +5V |
|
|
30 | SA1 | OSC |
|
|
31 | SA0 | 0V |
|
|
32 | 0V | 0V |
|
|
Notes:
Rows C and D are used for 16 bit (AT) operation.
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