The PCCOM V4.0 is a high performance MS/DOS device driver for PC/XT, PC/AT, PC/386, PC/486, Pentium or compatibles. Under MS/DOS environment, you can set up your serial ports by PCCOM device driver. The setup procedure provides flexible functions to specify the configuration of multi-serial card, that is, for PCCOM ISA cards, the hardware configurations likes 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 tack of all I/O data. Moreover, the PCCOM software provides library routines (C, PASCAL, BASIC, FoxPro) and DOS communication interface (DOS device driver, BIOS call) for several access levels.

The PCCOM V4.0 is an upgrade version of PCCOM V3.0 software. It can handle both PCCOM ISA and PCCOM PCI series cards. Each serial port may contain either 8250, 16450, 16550, or 16650 chip that can be automatically detected by the available baud rates are 600, 1200, 9600, 38400, 56000, 115200,230400 and 460800 bps.

•For more details, please refer PCCOMV2 manual

The Card_id field is defined as 1 or 2 or 3 or 4 or nil, if you use PnP mode, just fill nil in card_id field that like step 1, otherwise you can specify card_id to match the card identifier switch. The Portno field is used to specify number of ports in this adapter. The Port field is defined as PCCOM V2.0.

If more than one PCCOM board is installed, Please repeat directive /P of the step 1.