
                    CPU Speed Determination Code - README                        
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                               April 17, 1996

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This code is simple MASM code that can be used to determine the CPU 
clock speed on the NS486SXF evaluation board.  This is done automatically 
with versions 2.4 and newer of the Flash Loader.  However, this code could 
serve as an example of measuring CPU operating frequency on a proprietary 
board.

This code is similar to the "Boiler Plate" code in the BOILER directory.
You may wish to become familiar with that code before using this code.

This code is very specific to the evaluation board.  It uses the external
UART and the internal timer to calculate the operating frequency.  If
no external UART is available, this code is not useable.

The provided .FLC script will allow you to program and boot this program
from the Flash Loader.  It will calculate the CPU speed and store the result
in a certain DRAM area.  After this it will jump to a user definable 
area (0xFFFCFFF0).

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