Chapter 5 IEEE 1284 Parallel Interface
Table 14. 1284 Signals
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| Type of Mode |
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Pin | Source of Data |
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Compatible | Nibble | Byte | |||
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1 | Host | nStrobe | HostClk | Host/Clk | |
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2 | Host/Printer | Data 1 (LSB) |
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3 | Host/Printer | Data 2 |
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4 | Host/Printer | Data 3 |
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5 | Host/Printer | Data 4 |
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6 | Host/Printer | Data 5 |
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7 | Host/Printer | Data 6 |
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8 | Host/Printer | Data 7 |
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9 | Host/Printer | Data 8 (MSB) |
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10 | Printer | nAck | PtrClk | PtrClk | |
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11 | Printer | Busy | PtrBusy | PtrBusy | |
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12 | Printer | PError | AckDataReq | AckDataReq | |
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13 | Printer | Select | Xflag | Xflag | |
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14 | Host | nAutoFd | Host Busy | HostAck | |
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15 |
| Not Defined |
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16 |
| Logic Grid |
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17 |
| Chassis Grid |
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18 | Printer | Peripheral Logic High |
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19 |
| Signal Ground (nStrobe) |
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20 |
| Signal Ground (Data 1) |
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21 |
| Signal Ground (Data 2) |
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22 |
| Signal Ground (Data 3) |
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23 |
| Signal Ground (Data 4) |
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24 |
| Signal Ground (Data 5) |
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25 |
| Signal Ground (Data 6) |
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26 |
| Signal Ground (Data 7) |
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27 |
| Signal Ground (Data 8) |
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128
