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When you select the Clock field, you will see the following pop-up
menu with which you specify the clock.
Figure
9-7.
Clock Pop-Up Menu
You can use one of the clocks alone or combine them to build one
clocking arrangement. If you select a field to the right of one of the
clocks in the pop-up you will see another pop-up menu:
Figure 9-8. Single Clock Pop-Up Menu
You can specify the negative edge of the clock, the positive edge, either
edge, a high level, a low level, or the clock to be off.
The clocks are combined by ORing and ANDing them. Clock edges
are ORed to clock edges, clock levels are ORed to clock levels, and
clock edges are ANDed to clock levels.
For example, if you select &for the J clock, t for the K clock, for the
M clock, and - for the N clock, the resulting clocking arrangiment
will appear in the display as:
Clock
I( JJ + Kt
>
l
( tl,
+ N- 11
Figure 9-9. Example of a Clocking Arrangement
State Format Specification Menu
HP
16528/1653B
9-8
Front-Panel Reference
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