Geneve External bus definition
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This is the pin assignment of the PEB slot as used by the Geneve. Pins 1 and 2 are located at the back, pins 59 and 60 are located at the front. The diagram below is seen from above into the slot.
| Meaning | Type | Pin | Pin | Type | Meaning |
| Unregulated +5 V | - | 1 | 2 | - | Unregulated +5 V |
| GND | - | 3 | 4 | I | /READY |
| GND | - | 5 | 6 | O | /RESET |
| GND | - | 7 | 8 | O | SCLK; not connected; AMD for GenMod |
| /LCP; not used; pulled up to +5V; AME for GenMod | O | 9 | 10 | I | AUDIO |
| /RDBENA; not connected | - | 11 | 12 | I | PCBEN, not used; pulled up to +5V |
| /HOLD | I | 13 | 14 | O | /ABUS-HOLDA |
| /SENILA; not used; pulled up to +5V | O | 15 | 16 | O | /SENILB; not used; pulled up to +5V |
| /INTA | I | 17 | 18 | I | /INTB |
| D7 | I/O | 19 | 20 | - | GND |
| D5 | I/O | 21 | 22 | I/O | D6 |
| D3 | I/O | 23 | 24 | I/O | D4 |
| D1 | I/O | 25 | 26 | I/O | D2 |
| GND | - | 27 | 28 | I/O | D0 |
| A14 | O | 29 | 30 | O | A15 |
| A12 | O | 31 | 32 | O | A13 |
| A10 | O | 33 | 34 | O | A11 |
| A8 | O | 35 | 36 | O | A9 |
| A6 | O | 37 | 38 | O | A7 |
| A4 | O | 39 | 40 | O | A5 |
| AB2 | O | 41 | 42 | O | AB3 |
| AB0 | O | 43 | 44 | O | AB1 |
| AMB | O | 45 | 46 | O | AMA |
| GND | - | 47 | 48 | O | AMC |
| GND | - | 49 | 50 | O | CLKOUT |
| /CRUCLK | O | 51 | 52 | O | DBIN |
| GND | - | 53 | 54 | O | /WE |
| CRUIN | I | 55 | 56 | O | /MEMEN |
| Unregulated -12V | - | 57 | 58 | - | Unregulated -12V |
| Unregulated +12V | - | 59 | 60 | - | Unregulated +12V |