HP 16501A LOGIC Manual do Utilizador descarregar pdf (Página 86)

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>

Concepts

4–6

1 2 ... 81 82 83 84 85 86 87 88 89 90 91 ... 129 130

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HP 16501A LOGIC Manual do Utilizador Página 86