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Modes of Operation
The Power PC 604 preprocessor interface can be used in three
different analysis modes: State-per-ack, State-per-clock, or Timing.
The following sections describe these operating modes and how to
configure the logic analyzer for each mode.
State-per-ack mode
In
State-per-ack mode, the logic analyzer uses trigger sequencer store
qualification to capture only address and data-acknowledge cycles. This is
the default mode set up by the configuration files.
State-per-ack mode provides the greatest information density in the logic
analyzer acquisition memory.
State-per-clock mode
In
State-per-clock mode, every clock cycle is captured by the logic analyzer,
including idle and wait states between and during tenures. To configure the
logic analyzer for State-per-clock mode, use the Trigger menu to change the
trigger store qualification to "anystate". For additional information, refer to
the "Trigger Menu" section.
Timing mode
In
Timing mode, the logic analyzer samples the microprocessor pins
asynchronously, typically with 4 ns resolution. To configure the logic
analyzer for timing analysis, select the Configuration menu of the logic
analyzer, select the Type field for Analyzer 1, and select Timing.
E2465A PowerPC 604 PGA Preprocessor
2-3
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