The PCCOM PCI bus 8 port adapter is an 32 bits
PCI bus board with Plug and Play (PnP) features, it provides eight
asynchronous serial communication ports (RS232 or RS422/RS485), which
link the computer and serial peripheral devices such as terminals,
modems, serial printers, plotters, ... etc.
The PCCOM PCI bus 8 port adapter is
particularly suited to facilitate the connection of terminals (VDUs) in
multi-user operating systems. The PCCOM board may be installed in any
Pentium or hardware compatible systems. The PnP features let hardware
configuration for IRQ and I/O address is detected by BIOS
automatically,
you don't need set switch and jumper.
Since most of the computer has its own
COM1 and COM2, the PCCOM PCI bus 8 port adapter can be configured from
COM4.
On board ST16C554 chip provides four 16550
functions which contains 16 bytes FIFO buffer for each 16550
ports. There are two kinds of mode can be choose, one is normal speed
mode that its baud rate up to 115200, another is high speed mode that
its baud rate up to 460K.
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