Connector C64 | Pin | Direction | Connector Centronics | Pin |
GND | 1, 12, A, N | --- | 19 - 30, 33 | Ground |
FLAG2 | B | <-- | 10 | Acknowledge |
PB0 | C | --> | 2 | Data 0 |
PB1 | D | --> | 3 | Data 1 |
PB2 | E | --> | 4 | Data 2 |
PB3 | F | --> | 5 | Data 3 |
PB4 | H | --> | 6 | Data 4 |
PB5 | J | --> | 7 | Data 5 |
PB6 | K | --> | 8 | Data 6 |
PB7 | L | --> | 9 | Data 7 |
PA2 | M | --> | 1 | Strobe |
GND | 3 | -> | 31 | Initialize printer |
Connector Mac | Pin | Connector C64 | Pin |
GND + RXD- | 4 - 5 | 1 + 12 + A + N | GND |
RXD+ | 8 | M | TXD (PA2) |
TXD+ | 6 | B + C | RXD (FLAG2 + PB0) |
D + E | RTS + DTR (PB1 + PB2) |