DIL/NetPC DNP/8331 – Hardware Reference
D o c u m e n t R e v i s i o n 1 . 0
31
COM1 Serial Port, DCD Pin
32
33
COM1 Serial Port, CTS Pin
34
COM1 Serial Port, TXD Pin
35
COM1 Serial Port, RXD Pin
36
Parallel I/O, Port C, Bit 0
37
Parallel I/O, Port C, Bit 1
38
Parallel I/O, Port C, Bit 2
39
Parallel I/O, Port C, Bit 3
40
Table 4: Pinout DIL-40 connector part 2
3.2 DIL-40 Connector Function Multiplexing
Some pins of the DIL-40 connector of the DNP/8331 ha e multiple meanings. The pins ha e
a main and an alternate function (function multiplexing).
The main functions correspond with the standard pinout of the DIL-40 connector as shown
in table 2. The alternate functions are shown in table 3 below.
Parallel I/O, Port A, Bit 0
Parallel I/O, Port A, Bit 1
Parallel I/O, Port A, Bit 2
Parallel I/O, Port A, Bit 3
Parallel I/O, Port A, Bit 4
Parallel I/O, Port A, Bit 5
Parallel I/O, Port A, Bit 6
Parallel I/O, Port A, Bit 7
Parallel I/O, Port B, Bit 1
Parallel I/O, Port B, Bit 2
Parallel I/O, Port B, Bit 3
Parallel I/O, Port B, Bit 4
Parallel I/O, Port B, Bit 5
Parallel I/O, Port B, Bit 6
Parallel I/O, Port B, Bit 7
Parallel I/O, Port C, Bit 0
Parallel I/O, Port C, Bit 1
Parallel I/O, Port C, Bit 2
Parallel I/O, Port C, Bit 3
Table 5: D P/8331 function multiplexing
