KTD-00774-D
KTUS15/mITX
Page 34 of 82
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4.9
Printer Port Connector (PRINTER)
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.
