Verilog Constructs

This chapter begins looking at the basic construction of a Verilog module. The chapter begins by covering the built-in features of a Verilog module including the file structure, data types, operators, and declarations. It provides a foundation of Verilog that will lead to modeling examples provided in Chap. 3. The original Verilog standard (IEEE 1364) has been updated numerous times since its creation in 1995. The most significant update occurred in 2001, which was titled IEEE 1394-2001. In 2005, minor improvements were added to the standard, which resulted in IEEE 1394-2005. The constructs described in this book reflect the functionality in the IEEE 1394-2005 standard. The functionality of Verilog (e.g., operators, signal types, functions) is defined within the Verilog standard; thus, it is not necessary to explicitly state that a design is using the IEEE 1394 package because it is inherent in the use of Verilog.