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Here you will find Interface bus and Device Bus description and CPU
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| DIN Conn. | Device Bus |
| Interface Bus |
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| PIN NO. | CPU Pin Nr. | Function | CPU PIN Nr. | SIGNAL |
| 2nd Function |
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| A1 | 18 | SOT0 | 85 | AD00 |
| P00 |
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| B1 | 19 | SCK0 | 86 | AD01 |
| P01 |
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| C1 | 20 | SIN0 | 87 | AD02 |
| P02 |
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| A2 | 24 | SOT1 | 88 | AD03 |
| P03 |
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| B2 | 22 | SCK1 | 89 | AD04 |
| P04 |
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| C2 | 21 | SIN1 | 90 | AD05 |
| P05 |
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| A3 |
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| 91 | AD06 |
| P06 |
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| B3 |
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| 92 | AD07 |
| P07 |
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| C3 |
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| 93 | AD08 |
| P10 |
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| A4 | 69 | INT0 | 94 | AD09 |
| P11 |
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| B4 | 70 | INT1 | 95 | AD10 |
| P12 |
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| C4 | 71 | INT2 | 96 | AD11 |
| P13 |
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| A5 | 72 | INT3 | 97 | AD12 |
| P14 |
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| B5 | 29 | INT4 | 98 | AD13 |
| P15 |
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| C5 | 30 | INT5 | 99 | AD14 |
| P16 |
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| A6 | 31 | INT6 | 100 | AD15 |
| P17 |
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| B6 | 32 | INT7 | 1 | A16 |
| P20 |
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| C6 | 25 | SOT2 | 2 | A17 |
| P21 |
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| A7 | 26 | SCK2 | 3 | A18 |
| P22 |
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| B7 | 28 | SIN2 | 4 | A19 |
| P23 |
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| C7 |
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| 5 | A20 |
| P24 |
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| A8 |
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| 6 | A21 |
| P25 |
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| B8 |
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| 7 | A22 |
| P26 |
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| C8 |
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| 8 | A23 |
| P27 |
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| A9 |
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| 9 | ALE |
| P30 |
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| B9 |
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| 10 | \RD |
| P31 |
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| C9 |
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| 12 | \WRL |
| P32 |
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| A10 |
| 13 | \WRH |
| P33 |
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| B10 |
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| 14 | HRQ |
| P34 |
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