Owner`s manual

Parallel Printer Interface
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
Parallel Printer Interface
(Centronics)
Symbol Description
STROBE Strobe pulse from
GND
PDO
GND
PD1
GND
PD2
GND
PD3
GND
PD4
GND
PD5
the Computer to
printer.
Ground
Bit 0 (lsb) of out-
put data byte
Ground
Bit 1 of output
data byte
Ground
Bit 2 of output
data byte
Ground
Bit 3 of output
data byte
Ground
Bit 4 of output
data byte
Ground
Bit 5 of output
data byte
Pin
No.
14
15
16
17
18
19
20
21
22
23
24
25
26
Parallel Printer Interface
(Centronics)
Symbol
GND
PD6
GND
PD7
GND
NC
GND
BUSY
GND
N C
GND
BUSY
N C
Description
Ground
Bit 6 of output
data byte
Ground
Bit 7 of output
data byte
Ground
Ground
Input to Com-
puter from Printer
Ground
Ground
Input to Com-
puter from
Printer, high in-
dicates device
selected.
ESBHBHBEEBBE
25 23 21 19 17 15 13 11 9 7 5 3
26 24 22 20 18 16 14 12 10 8
EEBESBEBBE
B
1
6
B
4 2
B B
r
J
60 / References