Related Questions. Increment in the clock frequency of a single CPU core (silicon based) is virtually no more feasible due to the physical and practical obstacles. computations. The Harvard architecture therefore achieves a high degree of concurrency. The data and instruction required to be processed resides in the main memory. Each instruction causes one of the available processing units to perform modifications of the data stored in a memory system. Funlctions of Control Unit II. The C64x organizes instructions into execution packets to enable parallel execution. If changes are made to data resident in cache these changes must eventually be stored to RAM eventually. It is generally made up of semiconductor device. Program modifications can be quite harmful, either by accident or design. Data in the CPU and information about the state of an executing program are stored in special, very fast storage called registers. On the other hand, the basic RISC architecture has two entirely separate memory spaces for the instructions and the data, which is the feature that was first introduced in Harvard architecture to overcome the bottleneck in the von Neumann architecture due to data-instruction shared paths between the CPU and the memory. Usually, it is assumed that M