User guide

7-32
VCD and VPD File Utilities
dumpvcdports [level] instance [instance1 instance2 ....]
Specify an instance whose port values are dumped to a VCD file.
[level] is a numeric value indicating the number of levels to
traverse down the specified instance. If not specified, or if the
value specified is "0", then the port values of all the instances
under the specified instance will be dumped.
You can generate a dump file for more than one instance by
specifying the instance names separated by a space. You can
also specify multiple dumpvcdports command in the same
command file.
Note:
dumpvcdports splits the inout ports of type wire into two
separate variables:
- one shows the value change information driven into the port.
VCS adds a suffix _DUT to the basename of this variable.
- the other variable shows the value change information driven
out of the port. VCS adds a suffix _TB to the basename of this
variable.
dutsuffix DUT_suffix
Specify a string to change the suffix added to the variable name
that shows the value change date driven out of the inout port. The
default value is _DUT. The suffix can also be enclosed within
double quotes.
tbsuffix TB_suffix
Specify a string to change the suffix added to the variable name
that shows the value change date driven into the inout port. The
default value is _TB. The suffix can also be enclosed within
double quotes.