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Connector pinout: ECP Parallel


ECP = Extended Capabilities Port









pinnamedirectiondescriptioncolor
1/STROBEOutA low on this line indicates, that there is valid data at the host. When this pin is de-asserted, the +ve clock edge should be used to shift the data into the device.
2Data 0IN/OUTAddress, Data or RLE Data Bit 0
3Data 1IN/OUTAddress, Data or RLE Data Bit 1
4Data 2IN/OUTAddress, Data or RLE Data Bit 2
5Data 3IN/OUTAddress, Data or RLE Data Bit 3
6Data 4IN/OUTAddress, Data or RLE Data Bit 4
7Data 5IN/OUTAddress, Data or RLE Data Bit 5
8Data 6IN/OUTAddress, Data or RLE Data Bit 6
9Data 7IN/OUTAddress, Data or RLE Data Bit 7
10AckInA low on this line indicates, that there is valid data at the Device. When this pin is de-asserted, the +ve clock edge should be used to shift the data into the Host.
11BusyInWhen in reverse direction a HIGH indicates Data, while a LOW indicates a Command Cycle.
12Paper Out / EndInWhen Low, Device acknowledges Reverse Request.
13SelectInExtensibility Flag
14Auto LinefeedOutWhen in forward direction a HIGH indicates Data, while a LOW indicates a Command Cycle.
15Error / FaultInA LOW set by the device indicates reverse data is available
16InitializeOutA LOW indicates data is in reverse direction
17Select PrinterOutA HIGH indicates Host is in 1284 Transfer Mode. Taken low to terminate.
18GNDInSignal Ground
19GNDSignal Ground
20GNDSignal Ground
21GNDSignal Ground
22GNDSignal Ground
23GNDSignal Ground
24GNDSignal Ground
25GNDSignal Ground