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The World of Computer Software
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World_Of_Computer_Software-02-387-Vol-3of3.iso
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550_util.zip
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IS16550.DES
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1992-11-30
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995b
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24 lines
IS16550.COM is a simple utility to determine if the UART in the serial port
of your PC is the new NS16550AN. The advantage of this chip, for the PC user,
is in its internal buffer which is important for the new fast machines,
especially those built around the 80386 microprocessor.
IS16550 will determine whether an NS16550AN UART is installed in a system. It
can check serial ports COM1 - COM4. If you do not specify the port(s), COM1
will be checked. You can specify one or more ports to be tested.
For example, if your system has two serial ports, you could enter:
IS16550 at COM1 and COM2 ?
Yes, you can type it as a whole sentence if you wish. Or you can make it as
terse as:
IS16550 1234
to check all four ports.
Note that there exists an NS16550 UART. This one has all the advantages of
the NS16550AN, except for the buffers. The IS16550 program can distinguish
between the two and will suggest a replacement if it detects the older chip.