ModelSim SE User's Manual - Electrical and Computer Engineering

UM-214 7 - Mixed-language simulation
Verilog: instantiating SystemC
SystemC instantiation criteria
Exporting SystemC modules
ModelSim SE User’s Manual
You can reference a SystemC module from Verilog as though the design unit is a module
of the same name.
A SystemC module can be instantiated in Verilog if it meets the following criteria:
SystemC module names are case sensitive. The module name at the SystemC
instantiation site must match exactly with the actual SystemC module name.
SystemC modules are exported using the SC_MODULE_EXPORT macro. See
"Exporting SystemC modules" (UM-214).
The module ports are as listed in the table shown in "Channel and Port type mapping"
(UM-196).
Port data type mapping must match exactly. See the table in "Data type mapping" (UM-
197).
Port associations may be named or positional. Use the same port names and port positions
that appear in the SystemC module declaration. Named port associations are case sensitive.
Parameter support is available as of the ModelSim 6.0 release. See "Parameter support for
Verilog instantiating SystemC" (UM-214).
To be able to instantiate a SystemC module from Verilog (or use a SystemC module as a
top level module), the module must be exported.
Assume a SystemC module named transceiver exists, and that it is declared in header file
transceiver.h. Then the module is exported by placing the following code in a .cpp file:
#include "transceiver.h"
SC_MODULE_EXPORT(transceiver);
Parameter support for Verilog instantiating SystemC
Passing parameters from Verilog to SystemC
To pass actual parameter values, simply use the native Verilog parameter override syntax.
Parameters are passed to SystemC via the module instance parameter value list.
In addition to int, real, and string, ModelSim supports parameters with a bit range.
Named parameter association must be used for all Verilog modules that instantiate
SystemC.
Retrieving parameter values
To retrieve parameter override information from Verilog, you can use the following
functions:
void sc_get_param(const char* param_name, int& param_value);
void sc_get_param(const char* param_name, double& param_value);
void sc_get_param(const char* param_name, sc_string& param_value, char