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Should Emulation
Control the External
Bits?
Threshold Voltage?
External Analyzer
Mode?
5-8 Using the External Analyzer
This configuration question allows you to specify whether the
emulation interface should control the external analyzer.
yes
The default configuration selects "yes". You
must answer "yes" to access the remaining
external analyzer configuration questions.
At the end of the configuration process the
external analyzer mode and threshold voltages
will be set; existing labels will be deleted, and
only the labels specified in response to the
questions below will be defined.
no
If emulation does not control the external bits,
the external analyzer configuration will not be
modified in any way by the emulation interface.
The external analyzer probe signals are divided into two groups:
the lower byte (channels 0 through 7 and the J clock), and the
upper byte (channels 8 through 15 and the K clock). You can
specify a threshold voltage for each of these groups with the
configuration questions shown below.
Threshold voltage for bits 0-7 and J clock? TTL
Threshold voltage for bits 8-15 and K clock? TTL
The default threshold voltages are specified as TTL which
translates to 1.40 volts.
Voltages may be in the range from -6.40 volts to 6.35 volts (with a
0.05V resolution). You may also specify CMOS (which translates
to 2.5 volts), or ECL (which translates to -1.3 volts).
This configuration question allows you to select the mode of the
external analyzer.
The default configuration selects the "emulation" external analyzer
mode. In this mode, you have 16 external trace signals on which
data is captured synchronously with the emulation clock.
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