I think in Varyl tri keyword is used as a data type. On the other hand, in SystemVerilog the tri keyword is used to show that a declared element is a wire and to allow the element to have multiple drivers. Therefore, its usage is similar...
Two types of nets in SystemVerilog are called tri and trireg. Typically, exactly one driver on a net is active at a time, and the net takes on that value. If no driver is active, a tri floats (z), while a trireg retains the previous value. If no type is specified for an input...
Does this mean that there is more than one thing trying to drive ioData or dataH? I read the error as saying that more than one thing is trying to drive dataH because ioData is a driver. Either way, it makes no sense to me in my Verilog code: ...
DS297 December 2, 2009 Product Specification www.xilinx.com 7 Tri-Mode Ethernet MAC v4.3 Interface Descriptions All ports of the core are internal connections in the FPGA fabric. An example HDL design, provided in both VHDL and Verilog, is delivered with each core. The example design connects...