HP 16500C, 16501A LOGIC manual State sequence levels The indi

Glossary

You should adjust measurement mod- ules to eliminate as much skew as possible so that it does not affect the accuracy of your measurements.

source field In the oscilloscope, the field that allows you to select a channel for edge triggering and trig- ger level setting.

state sequence levels The indi-

vidual states for the trigger sequencer in the state analyzer. For example, the HP 16550A has twelve states in its trigger sequencer. Each state has a sequence-advance specifi- cation and sequence-else specification, which specify the con- ditions the analyzer must find to transition from state to state. One of the states is the trigger term (see trigger). Each state also specifies the data which the analyzer will store while in that state looking for the se- quence-advance and sequence-else specifications.

storage qualification Store quali- fication allows you to specify the type of information to be stored in memory. Use store qualification to prevent memory from being filled with unwanted activity. When you begin to troubleshoot a problem, you will probably want to qualify storage of all activity. As you understand the problem better, you may want to

qualify only storage of a routine of in- terest, or qualify only writes to a variable.

terms Terms are the names of val- ues that can be used in trigger sequences. A term can be a single value on a label or set of labels, any value within a range of values on a la- bel or set of labels, or a glitch or edge transition on a bit or set of bits. See Also pattern terms, range terms, and glitch/edge terms.

timing sequence levels Similar to state sequence levels. However, the analyzer configuration may be such that there are different num- bers of state and timing sequence levels. See also state sequence levels.

toggle field A dark-blue field that has only two options. When you se- lect the field, the current option in that field will change (toggle) to its other option.

touch-sensitive screen Any dark- blue field on the screen is a “selectable” field. When you touch a dark-blue field, the field toggles to another option, a pop-up menu ap- pears, or the field turns light-blue to activate the control knob on that field.

Glossary–5