HP 54501A Operation Reference page 68

To satisfy this bit condition both channels mnst be high. The oscilloscope
high.
will not trigger until ehannel 4 goes high while channel 1 is
P�TTERN TRIGGER
hp runniru_
1 " 9 ' 0
, ' EElI
o . <X.'OC() •
10.0 ns/cl i "
HXXH
Figure 6-9. when entered Pattern
•
Change the trigger condition to when exited.
While ehanne1 4 is still high, when ehannel l goes low the bit pattern is no
longer true and the HP 5450lA triggers.
P" TTERN TRIGGER
" , , "
hp runn i n g
,
hen
...
0 . 00000
1 0 . 0
s
r h o l doff
n s / o i "
w . ooo
..
t'HI. HXXH
Figure when exited Pattern
Trigger Menu
6-14