B&B Electronics Parallel Printer Card PIOC - Manual (Page 3)

2 Documentation Number PIOC2595 Manual
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350
PH (815) 433-5100 -- FAX (815) 433-5105
Table 1 - Printer Functions
Setting the Address
The base address of the PIOC is set using a eight-position DIP
switch, SW1. The eight positions correspond to the I/O address lines
of A2 through A9 (see Table 2). If you set the a switch OFF the
corresponding I/O address line will be a ZERO and if you set it ON
the corresponding I/O address line will be a ONE. The factory
default address setting is 378h. To set the card to the 378h address
you must set A2 and 7 OFF and A3, 4, 5, 6, 8, and 9 ON. Table 3
shows the settings for LPT1 and LPT2.
PIOC DB-25
Connector Printer
Function
1 Strobe
2
Data Bit 1
3 Data Bit 2
4 Data Bit 3
5 Data Bit 4
6 Data Bit 5
7 Data Bit 6
8 Data Bit 7
9 Data Bit 8
10 Acknowledge
11 Busy
12 Paper
End
13 Select
14 Auto
Feed
15 Error
16 Initialize
Printer
17 Select Input
18 - 25 Ground