Table of Contents
Advertisement
Specifications
PCI DUAL RS232 & PCI
Introduction.
This chapter details the specifications of the PCI Dual
RS232 and PCI Velocity RS232 serial card. The differences
between the two cards are: - LPT port present on PCI Dual RS232
only, larger FIFO size and greater baud rate on the PCI Velocity
(due to the presence of a 16C750 UART, rather than the standard
16C550). These half-sized cards will work happily in any PCI 2.0
or greater compliant PC compatible.
General PCI RS232 Card Features.
Two independent 9 pin D RS232 Serial ports.
Reliable communications up to 50 feet, 15m, and beyond!
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.
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. 300MHz Pentium II WITHOUT extra wait states.
PCI Dual RS232 Features.
16C550 FIFO provides 16-byte input and 16-byte output buffer
on each port.
Maximum baud rate of 115,200 Baud.
Clock input of 1.8432 Mhz
One optional Centronics Parallel printer port, 100% PC compatible.
Chapter 2 Page 6
Chapter 2
VELOCITY RS232
SPECIFICATIONS
PCI DUAL RS232
Advertisement
Table of Contents
