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HwB: C64 Cartridge Expansion Connector
C64 Cartridge Expansion
(At the computer)
44 PIN FEMALE EDGE at the computer.
| Pin | Name | Description |
|---|---|---|
| 1 | GND | Ground |
| 2 | +5V | +5 Volts DC |
| 3 | +5V | +5 Volts DC |
| 4 | /IRQ | Interrupt Request |
| 5 | /CR/W | |
| 6 | DOTCLK | Dot Clock |
| 7 | I/O 1 | |
| 8 | /GAME | Game |
| 9 | /EXROM | |
| 10 | I/O 2 | |
| 11 | /ROML | ROM Low |
| 12 | BA | |
| 13 | /DMA | |
| 14 | CD7 | Cartridge Data 7 |
| 15 | CD6 | Cartridge Data 7 |
| 16 | CD5 | Cartridge Data 7 |
| 17 | CD4 | Cartridge Data 7 |
| 18 | CD3 | Cartridge Data 7 |
| 19 | CD2 | Cartridge Data 7 |
| 20 | CD1 | Cartridge Data 7 |
| 21 | CD0 | Cartridge Data 7 |
| 22 | GND | Ground |
| A | GND | Ground |
| B | /ROMH | ROM High |
| C | /RESET | Reset |
| D | /NMI | Non Maskable Interrupt |
| E | S02 | |
| F | CA15 | Cartridge Address 15 |
| H | CA14 | Cartridge Address 14 |
| J | CA13 | Cartridge Address 13 |
| K | CA12 | Cartridge Address 12 |
| L | CA11 | Cartridge Address 11 |
| M | CA10 | Cartridge Address 10 |
| N | CA9 | Cartridge Address 9 |
| P | CA8 | Cartridge Address 8 |
| R | CA7 | Cartridge Address 7 |
| S | CA6 | Cartridge Address 6 |
| T | CA5 | Cartridge Address 5 |
| U | CA4 | Cartridge Address 4 |
| V | CA3 | Cartridge Address 3 |
| W | CA2 | Cartridge Address 2 |
| X | CA1 | Cartridge Address 1 |
| Y | CA0 | Cartridge Address 0 |
| Z | GND | Ground |