Parallel port pin assignment

G0 to G7 are ground pins

 

 

Signal          BIT
PIN     Direction

 

-Strobe         ¬C0 1     Output

 

+Data Bit 0         D0 2     Output

 

+Data Bit 1         D1 3     Output

 

+Data Bit 2         D2 4     Output

 

+Data Bit 3         D3 5         Output

 

+Data Bit 4         D4          6         Output

 

+Data Bit 5         D5          7         Output

 

+Data Bit 6         D6          8         Output

 

+Data Bit 7         D7          9         Output

 

–Acknowledge         S6          10         Input

 

+Busy             ¬S7          11         Input

 

+Paper End         S5          12         Input

 

+Select In             S4          13         Input

 

-Auto Feed         ¬C1         14         Output

 

-Error             S3          15         Input

 

-Initialize             C2          16         Output

 

-Select             ¬C3           17         Output

 

Ground              -         18-25     Ground