User guide

17-22
Using the PLI
The level_number in this option specifies more and more ACC
capabilities as follows:
+acc+1 or +acc
Enables all capabilities except value change callbacks and delay
annotation.
+acc+2
Above, plus value change callbacks.
+acc+3
Above, plus module path delay annotation.
+acc+4
Above, plus gate delay annotation.
Enabling ACC Write Capabilities Using the
Configuration File
You specify the configuration file with the +optconfigfile
compile-time option. For example:
+optconfigfile+filename
The VCS configuration file enables you to enter statements that
specify:
• Using the optimizations of Radiant Technology on part of a design
• Enabling PLI ACC write capabilities for all memories in the design,
disabling them for the entire design, or enabling them for part or
parts of the design hierarchy
• Four state simulation for part of a design