User`s guide

Targ et Preferences
output from the qua lifier change s to 0 immediately after the
third consecutive value is rece iv ed .
• Qualificati
on using 6 samples
— This setting requires six
consecutive
cycles of the same G PIO input value for the output
from the qua
lifier to change. In the f ollowing figure, the glitch
A has no effe
ct on the output signal. When the glitch occurs,
the countin
g begins, but the next measurement is low again, so
the count i
s ignored. The output signal does not change until
six consec
utive samples of the high signal are measured.
Qualification sam pling period prescaler
Visible only w hen an appropriate setting for Qualification
type for GP IO [pin#] is selected. The qualification
sampling period prescaler, with possible v alu es of
0 to 255,
calculates the frequency of the qualification samples or the
number of system clock ticks per sample. The formula for
calculating the qualification sampling frequency is:
9-89