Concepts

you want to capture activity after the trigger is captured, define an additional sequence level and specify the desired storage qualification for post-trigger activity (for example, store “anystate”).

Analyzer Resources

The sequence-advance, sequence-else, storage, and trigger-on specifications are set by a combination of up to 10 pattern terms, 2 range terms, and 2 timers. Different analyzer models may vary in the number of resources available.

10 Pattern Terms

The pattern terms, a through j, represent single states to be found on labeled sets of bits. For example, you could have an address on the address bits or a status on the status bits.

2 Timers

You can start, stop, continue, or pause the timers upon entry to a sequence state, then use a comparison of current timer value against a preset value to determine whether to branch to another state.

2 Range Terms

The range terms, Range1 and Range2, represent ranges of values to be found on labeled sets of bits. For example, you could have a range of addresses to be found on the address bus or a range of data values to be found on the data bus. Range terms are satisfied by any value within the range for “In_Range,” and any value outside the range for “Out_Range.”

You can combine the pattern terms and range terms with logical operators to form complex pattern expressions in the sequence-advance, sequence-else, and TRIGGER on specifications.

For example,

Find "<TERM1>+<TERM2>" OR <TERM1> and <TERM2>

Find "<TERM1>.<TERM2>" AND <TERM1> and <TERM2>

4–6

Page 86
Image 86
HP 16501A LOGIC, 16500C manual Analyzer Resources, For example