The harvard architecture stores machine instructions and data in separate memory units that are connected by different busses. The harvard architecture has a physically separated storage and signal pathways for instructions and data. Raisoni college of engineeringautonomous,nagpur ravikumar. In basic principle, both architectures divide a computing system into 4 main units. The bus matrix actually does much more than this, as you might have read in chapter 6, including the virtual to physical address translation and kerneluser mode protection. Harvard architecture has separate data and instruction busses, allowing transfers to be performed simultaneously on both busses. Therefore the characteristics of data and program memory and can differ. Thus, the program can be easily modified by itself since it is stored in readwrite memory. Both of these are different types of cpu architectures used in dsps digital signal processors. Whats the difference between vonneumann and harvard.
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