The user should instantiate an instance of JtagSC for each JTAG interface on the target model. The JtagSC ports should be connected to the system reset and TAP signal ports on the model using SystemC signals of type sc_signal<bool>.

Other SystemC modules may then queue actions by writing instances of TapActionReset, TapActionIRScan and TapActionDRScan to the JtagSC FIFO. This is normally within the context of a SC_THREAD, allowing the module to wait for notification when each action is complete.