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Specifying the
Maximum Qualified
Clock Speed
Special Analyzer Topics 6-4
Figure 6-1. Qualified Clocks
The maximum qualified clock rate is the repetition rate of all specified
clock signals (see figure 6-1). You are allowed to select the maximum
qualified clock speed of the analyzer; however, there are tradeoffs in-
volving the trace count qualifier to be considered. You select the maxi-
mum qualified clock speed with the -s option to the tck command.
There are three maximum speeds that can be specified:
Slow (tck -s S). Slow specifies a maximum qualified clock rate of
•
16 MHz. When S is selected, there are no restrictions on the trace
count qualifier.
Fast (tck -s F). Fast specifies a maximum qualified clock rate of 20
•
MHz. When "F" is selected, the trace count qualifier may be used
to count states but not time.
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