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Trace Storage,
Prestore, and Count
Sequencer
Simple Commands
for Common
Measurements
External Analysis
Coordinated
Measurements
ditional trace commands to qualify when execution should be traced
and which bus cycle states should be stored.
The analyzer can store up to 1024 states in trace memory. These states
can be normal storage states or prestore states (states which precede
normal storage states). A count may be associated with normal storage
states; you can specify that the analyzer count in either time or the oc-
currences of some state. When counts are specified, only 512 states can
be stored.
You can use the analyzer to search for a particular sequence of states.
The sequencer, which makes this possible, has several levels (also called
sequence terms). Each level of the sequencer can search for two states
at a time. When one of these states is found, the sequencer branches to
another sequence term. The term that is branched to depends on
which state is found first.
When the emulator is powered up or initialized, the analyzer is set up
in its "easy" configuration. The "easy" configuration hides much of the
complexity of the analyzer and makes it easier to use; it allows you to
make simple measurements without requiring a thorough knowledge
of the analyzer. You can access the full capability of the analyzer via a
command to select the "complex" configuration.
Your HP 64700 Series emulator may optionally contain an external
analyzer. The external analyzer provides 16 external trace signals and
two external clock inputs. You can use the external analyzer as an ex-
tension to the emulation analyzer, as an independent state analyzer, or
as an independent timing analyzer.
When multiple HP 64700 Series emulators are connected via the Coor-
dinated Measurement Bus (CMB), you can use the analyzer to trigger
Introduction 1-3
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