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Printer Port DB25 connector |
| Pin No |
Signal name |
Direction |
Register - bit |
Inverted |
|
1 |
nStrobe |
Out |
Control-0 |
Yes |
|
2 |
Data0 |
In/Out |
Data-0 |
No |
|
3 |
Data1
|
In/Out
|
Data-1
|
No
|
|
4 |
Data2
|
In/Out
|
Data-2
|
No
|
|
5 |
Data3
|
In/Out
|
Data-3
|
No
|
|
6 |
Data4
|
In/Out
|
Data-4
|
No
|
|
7 |
Data5
|
In/Out
|
Data-5
|
No
|
|
8 |
Data6
|
In/Out
|
Data-6
|
No
|
|
9 |
Data7
|
In/Out
|
Data-7
|
No
|
|
10 |
nAck
|
In
|
Status-6
|
No
|
|
11 |
Busy
|
In
|
Status-7
|
Yes
|
|
12 |
Paper-Out
|
In
|
Status-5
|
No
|
|
13 |
Select
|
In
|
Status-4
|
No
|
|
14 |
Linefeed
|
Out
|
Control-1
|
Yes
|
|
15 |
nError
|
In
|
Status-3
|
No
|
|
16 |
nInitialize
|
Out
|
Control-2
|
No
|
|
17 |
nSelect-Printer
|
Out
|
Control-3
|
Yes
|
|
18-25 |
Ground
|
-
|
-
|
-
|
|
|
|
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