Appendix C: Parallel Interface
The
Table of Connection Signals for Each Mode
|
| Pin No. | Direction | Compatibility Mode | Nibble Mode | Byte Mode | ||
|
| Signal Name | Signal Name | Sginal Name | ||||
|
|
|
| |||||
|
|
|
|
|
|
|
|
|
|
| 1 | In |
|
|
| Host Clock | Host Clock |
|
| nStrobe | ||||||
|
| 2 | In/Out |
| Data0 | Data0 | Data0 | |
|
|
|
|
|
|
|
|
|
|
| 3 | In/Out |
| Data1 | Data1 | Data1 | |
|
|
|
|
|
|
|
|
|
|
| 4 | In/Out |
| Data2 | Data2 | Data2 | |
|
|
|
|
|
|
|
|
|
|
| 5 | In/Out |
| Data3 | Data3 | Data3 | |
|
|
|
|
|
|
|
|
|
|
| 6 | In/Out |
| Data4 | Data4 | Data4 | |
|
|
|
|
|
|
|
|
|
|
| 7 | In/Out |
| Data5 | Data5 | Data5 | |
|
|
|
|
|
|
|
|
|
|
| 8 | In/Out |
| Data6 | Data6 | Data6 | |
|
|
|
|
|
|
|
|
|
|
| 9 | In/Out |
| Data7 | Data7 | Data7 | |
|
|
|
|
|
|
|
|
|
|
| 10 | Out |
| nAck | PtrClk | PtrClk | |
|
|
|
|
|
|
|
|
|
|
| 11 | Out |
| Busy | PtrBusy/Data3,7 | PtrBusy | |
|
|
|
|
|
|
|
|
|
APPENDIX |
| 12 | Out |
| PError | AckDataReq/Data2,6 | AckDataReq | |
|
|
|
|
|
|
|
| |
| 13 | Out |
| Select | Xflag/Data1,5 | Xflag | ||
|
|
| ||||||
|
|
|
|
|
|
|
|
|
|
| 14 |
|
| N/C | HostBusy | HostBusy | |
|
|
|
|
|
|
|
|
|
|
| 15 |
|
| N/C | — | — | |
|
|
|
|
|
|
|
|
|
|
| 16 |
| Signal GND | Signal GND | Signal GND | ||
|
| |||||||
|
|
|
|
|
|
|
|
|
|
| 17 |
| Frame GND | Flame GND | Flame GND | ||
|
|
|
|
|
|
|
|
|
|
| 18 | OUT |
| +5V | +5V | +5V | |
|
|
|
|
|
|
|
|
|
|
| 19~30 |
| Twisted Pair Return | Twisted Pair Return | Twisted Pair Return | ||
|
|
|
|
|
|
|
|
|
|
| 31 | In |
| nInit | nInit | nInit | |
|
|
|
|
|
|
|
|
|
|
| 32 | Out |
| nFault | nDataAvail/Data0,4 | nDataAvail | |
|
|
|
|
|
|
|
|
|
|
| 33 |
| External GND | — | — | ||
|
|
|
|
|
|
|
|
|
|
| 34 |
|
| N/C | — | — | |
|
|
|
|
|
|
|
|
|
|
| 35 |
|
| N/C | — | — | |
|
|
|
|
|
|
|
|
|
|
| 36 | In | nSelectIn | 1284Active | 1284Active | ||
|
|
|
|
|
|
|
|
|
This connector mates with an
Amphenol
Parallel interface connector (printer side)
– 107 –
