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Chapter 5: Using the Emulation-Bus Analyzer
Making Complex Trace Measurements
To use address, data, and status values in trace
expressions
• Enter the value(s) desired in the entry buffer (such as address 1000h). Then
Choose Trace→After(), Trace→Before(), or Trace→About(), as desired.
• Using the command line, enter commands as follows:
•
<expression> -or- address <expression>
•
data <expression>
•
status <expression>
Many trace commands require that you enter address, data and status expressions to
specify the bus state. You can combine multiple expressions on the same command
line to build a complete bus state qualifier. You can also use logical operators to
build more complex states. Refer to Chapter 11, "Emulator Commands", for details.
The default expression type is address, therefore you don't need to specify the
address keyword when you enter an address expression.
Example
Start a trace and store only writes of 0 hex to the graph address in the demo
program:
trace only graph data 0 status write
238
To specify an address expression, enter:
To specify a data expression, enter:
To specify a status expression, enter:
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