Miscellaneous
Parallel Interface Connector Pin Assignments
Pin No. | I/O |
| Signal |
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| Interface mode | ||
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| Compatible | Nibble |
| ECP |
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1 | I | nStrobe | HostClk |
| HostClk |
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2 | I/O |
| Data1 (LSB) |
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3 | I/O |
| Data2 |
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4 | I/O |
| Data3 |
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5 | I/O |
| Data4 |
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6 | I/O |
| Data5 |
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7 | I/O |
| Data6 |
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8 | I/O |
| Data7 |
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9 | I/O |
| Data8 (MSB) | ||
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10 | O | nACK | PtrClk |
| PeriphClk |
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11 | O | Busy | PtrBusy |
| PeriphAck |
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12 | O | PError | AckDataReq |
| nAckReverse |
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13 | O | Select | Xflag |
| Xflag |
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14 | I | nAutoFd | HostBusy |
| HostAck |
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15 |
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| Not defined |
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| GND |
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18 | O | Peripheral Logic High |
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| (pull up to +5V with 1k Ω) | |||
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| GND |
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31 | I | nInit | nInit |
| nReverseRequest |
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32 | O | nFault | nDataAvail |
| nPeriphRequest |
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33 |
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| Not defined |
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34 |
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| Not defined |
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35 |
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| Not defined |
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36 | I | nSelectln | IEEE 1284 Active |
| IEEE 1284 Active |
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Within the
USB Interface
Data transfer method
Complies with Universal Serial Bus Specification Revision 1.0
USB Interface Connector Pin Assignments
Pin No. | I/O | Signal | Function |
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| VCC | Cable power, maximum |
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| current |
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| I/O | Data | |
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| I/O | +Data | Data, pull up to +3.3V by |
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| a 1.5 Ω resistor |
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| Ground | Cable ground |
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The specifications and appearance of this printer are subject to change without notice.
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