September 1992/Using the PC's Parallel Port for Bidirectional Communications/Table 1

Table 1

Line Function       Type     Port Byte   Port Bit   25 Pin #
--------------------------------------------------------------
Data 0              Output   0           0          2
Data 1              Output   0           1          3
Data 2              Output   0           2          4
Data 3              Output   0           3          5
Data 4              Output   0           4          6
Data 5              Output   0           5          7
Data 6              Output   0           6          8
Data 7              Output   0           7          9
Time Out            Status   1           0
Not Used                     1           1,2
Not error           Status   1           3          15
Selected            Status   1           4          13
Paper Out           Status   1           5          12
Acknowledge         Status   1           6          10
Not Busy            Status   1           7          11
Strobe              Control  2           0          1
Auto Feed           Control  2           1          14
Initialize Printer  Control  2           2          16