Clock
pulse generator
A
clock pulse generator can be con-
structed from a self-clocking timer
F2
0
U
with a T flip-flop (binary scaler)
at its output.
Timer
T
7
is restarted with flag
F
2.0
each time its time elapses,
i.e. flag
F
2.0
has a
"1"
signal
for one cycle each time the time
e
l
apses
.
These pulses from flag
F
2.g
act on
the following T flip-flop with the
result that a pulse train with a
mark-space ratio of
1
:
1
appears
at output
Q
6.6.
The period dura-
tion of this pulse train is twice
as great as the time of the
self-
clocking timer.
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