Artesyn BajaPPC-750, User Manual

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Parallel Port (Optional) 8-17
0002M621-15
The parallel port Control Register bits are defined as follows:
PE Paper End. Read by CPU as bit 5 of Printer Status Register.
0 = paper is loaded, 1 = paper end detected
SLCT Printer Selected Status. Read by CPU as bit 4 of Printer Status Register.
0 = not selected, 1 = selected
nERR Error. Read by CPU as bit 3 of Printer Status Register.
0 = error detected, 1 = no error detected
TMOUT Time Out. Valid only in EPP mode.
0 = no time-out error, 1 = time-out error detected
7 6 5 4 3 2 1 0
0 0 PCD IRQE SLCTIN nINIT AUTOFD STROBE
Register Map 8-9. Ultra I/O Parallel Port Control
PCD Parallel Control Direction. Only valid in EPP or ECP mode.
0 = output mode (write), 1 = input mode (read)
IRQE Interrupt Request Enable.
0 = enabled, 1 = disabled
SLCTIN Printer Select Input. Inverted and output onto the nSLCTIN output.
0 = printer not selected, 1 = printer selected
nINIT Initiate Output. Output onto the nINIT output (not inverted).
AUTOFD Autofeed. Inverted and output onto the nAUTOFD output.
0 = no autofeed, 1 = generate automatic line feed after printing a line
STROBE Strobe. Inverted and output onto the nSTROBE output.