PCI Dual LPT & RS232 Software Configuration
Chapter 2 Page 8
CHAPTER 2
PCI DUAL LPT & RS232
SPECIFICATIONS
Introduction.
This chapter details the specifications of the PCI Dual LPT
& RS232 Card and explains how to add the optional serial/parallel
port to the card.
This half-sized card will work happily in any PCI 2.0 or
greater compliant PC compatible.
PCI Dual LPT & RS232 Card Features.
•
One or two Centronics Parallel printer ports, PC compatible
•
One or two independent 9 pin D RS232 Serial ports.
•
Reliable communications up to 50 feet, 15m, and beyond!
•
16550 FIFO provides 16-byte input and 16-byte output buffer
on each port.
•
Maximum baud rate of 115,200 Baud.
•
Word length of 5, 6, 7 or 8 bits.
•
Even, Odd, None, Mark or Space parity options.
•
1 start bit always sent.
•
1, (1.5 for 5 bit data word length) or 2 stop bits.
•
Clock input of 1.8432 MHz
•
100% PC Compatible serial port TI 16C550, up to 115,200
baud.
•
Full modem control TXD, RXD, DSR, DCD, DTR, RTS, CTS
and RI signals.
•
Fully double buffered for reliable asynchronous operation.
•
High-speed integrated circuitry ensures operation with fast PC’s
e.g. 500MHz Pentium II WITHOUT extra wait states.
