Logic design with emphasis on ASM method

This chapter has described how a more formal approach to logic design can be adopted that uses an algorithm of a solution as a basis for designing a hardware logic system. The method partitions the design into data part and control part and the chapter shows the relationship between these parts and the algorithm. The data part implements assignment and relational statements, while the control part activates the former and responds to the latter in the correct sequence. Optimisation was shown to form an integral part of this process. An ASM chart is produced to describe the controller and this chart forms the basis of the implementation decisions that follow. The method can be manual but is also suited to computer aided processes especially if some constraints are imposed on the implementation.