Kontron KTQ45/Flex - Printer Port Connector (LPT)

KTD-00782-H KTQ45 family Page 34 of 92
3.7 Printer Port Connector (LPT)
The signal definition in standard printer port mode is as follows:
Note
Pull
U/D
Ioh/Iol Type Signal
PIN Signal Type Ioh/Iol
Pull
U/D
Note
2K2
(24)/24
OC(O)
STB#
1
2
AFD#
OC(O)
(24)/24
2K2
2K2
24/24
IO
PD0
3
4
ERR#
I
-
2K2
2K2
24/24
IO
PD1
5
6
INIT#
OC(O)
(24)/24
2K2
2K2
24/24
IO
PD2
7
8
SLIN#
OC(O)
(24)/24
2K2
2K2
24/24
IO
PD3
9
10
GND
PWR
-
-
2K2
24/24
IO
PD4
11
12
GND
PWR
-
-
2K2
24/24
IO
PD5
13
14
GND
PWR
-
-
2K2
24/24
IO
PD6
15
16
GND
PWR
-
-
2K2
24/24
IO
PD7
17
18
GND
PWR
-
-
2K2
-
I
ACK#
19
20
GND
PWR
-
-
2K2
-
I
BUSY
21
22
GND
PWR
-
-
2K2
-
I
PE
23
24
GND
PWR
-
-
2K2
-
I
SLCT
25
26
GND
PWR
-
-
The definition of the signals in standard Centronics mode (SPP) with a printer attached is as follows:
Signal Description
PD7..0 Parallel data bus from PC board to printer. The data lines are able to operate in PS/2
compatible bi-directional mode.
SLIN# Signal to select the printer sent from CPU board to printer.
SLCT Signal from printer to indicate that the printer is selected.
STB# This signal indicates to the printer that data at PD7..0 are valid.
BUSY Signal from printer indicating that the printer cannot accept further data.
ACK# Signal from printer indicating that the printer has received the data and is ready to accept
further data.
INIT# This active low output initializes (resets) the printer.
AFD# This active low output causes the printer to add a line feed after each line printed.
ERR# Signal from printer indicating that an error has been detected.
PE# Signal from printer indicating that the printer is out of paper.
The printer port additionally supports operation in the EPP and ECP mode.