Comtrol Hostess 550 16 MC Networks Cards > Downloads Drivers and Manual

Company

Comtrol

Categories

Networks Cards

Model

Comtrol Hostess 550 16 MC

Description

Device Driver

Operating System

Windows NT 3.51

Version

1.30

Size Driver

83KB

File Name

6304.exe

Observations

Installation Notes
Hostess(R) Serial Port Installer for the Windows(TM) NT Operating System

ABOUT HOSTESS BOARDS AND THE WINDOWS NT OPERATING SYSTEM

INSTALLING THE DEVICE DRIVER

If the older Comtrol Installer program was used, the Registry entries
will need to be taken out using the regedit.exe (WINNT 4.0) or
regedt32.exe (WINNT 3.51) program.

Remove any entries associated with the Hostess board in the following area:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Serial\Parameters

This new install program is capable of un-installing ports that it installs,
so this process is only require if the original Comtrol installer
program was used. The original Comtrol installer was called Hostess.exe
(6304.ZIP).

This new install program is called SETUP.EXE, to use it create
a sub-directory for these files on your harddrive and copy it
over and run the SETUP.EXE program.

A test terminal program(called WCOM32.EXE) is included to help you
test out or verify installation of the ports.
TECHNICAL INFORMATION ON HOSTESS BOARDS/WINDOWS NT

The Hostess 550 boards are equipped with 16C550 UART chips that provide
a larger hardware buffer (16 byte FIFO). The Hostess 450 boards contain
the traditional 16C450 UART that has a single byte hardware buffer.

The Hostess boards are equipped with an IRQ "id" and "mask" register,
which allow drivers to process data more efficiently. The "id"
register is a single register which a driver may read to determine
which ports have pending interrupts. This is useful when you have
a number of ports sharing the same interrupt, otherwise the driver
must read the status from each port to determine who needs servicing.
The "mask" register is a register which the driver may write to in order
to enable or disable each ports interrupts. The "id" and "mask" registers
are normally placed at offset 07H from the first ports base address.
The Hostess-16 has an additional IRQ id/mask register for the
high 8 ports at offset 47H.

The configuration information is placed in the Windows NT System
Registry. It is very similiar to the older "SYSTEM.INI" file used
to configure Windows 3.1, except the Registry is a binary file (you
can not edit it with a text editor) and has a hierarchical organization.

Company

Comtrol

Available 15 files for Comtrol Hostess 550 16 MC

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