Parallel Interfaces - Epson SCE8720C Series Hardware Manual

3.3.8 Parallel interfaces

SCE8720C supports 1 parallel port complying with IEE1284.
ECP, EPP and SPP modes are supported.
Signal name
(17 pins in total)
LPTSTROBE#
LPTAFD#
LPTBUSY
LPTACK#
LPTERROR#
LPTPE
LPTINIT#
LPTSLCTIN#
LPTSLCT
LPTD[7:0]
Rev.A
I/O
Line printer strobe
I/OD
Signals used as a strobe for a peripheral on the parallel
interface to read the data.
Line printer auto feed
I/OD
When this signal is active, a parallel printer inserts a line
feed after every line.
Line printer busy
I
Signal which indicates that the printer is not able to accept
data from SCE8720C.
Line printer acknowledge
I
Signal which indicates that data transfer has been
completed and also prepared for the next transfer.
Line printer error
I
Input signal which notifies SCE8720C of errors in
peripheral devices.
Line printer paper end
I
Input signal which notifies SCE8720C that the printer is
out of paper.
Line printer initialize
I/OD
Initialization signal for the printer.
Line printer select in
I/OD
Signal used to select the peripheral device currently
connected to the parallel port.
Line printer selected
I/OD
Status signal sent to SCE8720C by a peripheral device in
order to confirm that SCE8720C has selected the device.
Line printer data bus
IOD
A data bus between SCE8720C and the printer.
EPSON
CARD-PCI/GX Hardware Manual
Function description
Active low
Active low
Active high
Active low
Active low
Active high
Active low
Active low
Active high
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