| The PCCOM V2.0 & V5.1 is
a high performance, easy to use RS232/RS422 device driver for PC/XT,
PC/AT, PC/386, PC/486 or compatibles. Under MS/DOS environment, you
can set up your serial ports by PCCOM device driver, and these serial
ports can be treated as COM1: and COM2: devices. The setup procedure
provides flexible functions to specify the configuration of multi-serial
card, that is, the hardware configurations of I/O port number, I/O
port address, interrupt and interrupt vector are user selectable.
After the
device driver is installed, It takes over communication between
CPU and multi-serial cards such as four port card, eight port card,
... etc. For each I/O port, the service routine handles a ring buffer
to keep track of all I/O data. Moreover, the PCCOM provides library
routines (C, PASCAL, BASIC, FoxPro) and DOS communication interface
(DOS device driver, BIOS call) for several access levels.
The PCCOM
V2.0 is an upgrade version of PCCOM V1.0 software it combines with
PCCOM V1.0 and SERIAL DRIVER utilities. While PCCOM V5.1 is on
upgrade version of PCCOM V2.0 software, that supports both ISA &
PCI series cards. Therefore, PCCOM V2.0 & V5.1 device driver supports
up to 64 ports and each serial port may be either 8250, 16450,
or 16550 (FIFO) chip.
The features of PCCOM
are:
*Support
RS232/RS422 device driver under MS/DOS.
*I/O port
number, I/O port address, interrupt, interrupt vector, and ring
buffer size selectable.
*Communication
parameters (baud rate, parity, ... etc. ) selectable.
*Device
name is specified by the user and it can be treated as a file to
perform I/O operations.
*The device
driver start up by directives of CONFIG.SYS file.
*Up to
64 ports can be driven and each serial port may be either 8250,
16450, or 16550 (FIFO) chip which are detected by PCCOM automatically.
*Support
C, PASCAL, and BASIC, FoxPro language library routines to link
user's program.
*Support
RS232/RS422 diagnostic programs, file transfer, and virtual terminal
evaluator software.
*Virtual
terminal evaluator provides graphics capability.
Comparisons between
PCCOM V2.0 and PCCOM V1.0 plus SERIAL DRIVER:
*Upgrade
version of PCCOM V1.0 and combines with PCCOM V1.0 plus SERIAL
DRIVER.
*New installation
procedure. (need not make serial driver).
*Provides
DOS device driver features which are COM1: and COM2: like.
*Supports
8250, 16450, and 16550 drivers.
*More than
8 ports use common IRQ (up to 24 ports).
*More than
8 ports in one device driver (up to 64 ports).
*More than
8K bytes ring buffer is used in one port (up to 32K bytes).
*Support
ISA bus communication interface ( it means IRQ select can be 2,
3, 4, 5, 6, 7, 10, 11, 12, 14, 15).
*Provides
both BIOS call and DOS device driver interface.
*Provides
C, PASCAL, BASIC, FOXPRO libraries.
Comparison between
PCCOM V5.1 and PCCOM V2.0:
*Supports
both ISA and PCI series cards.
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