The Harvard architecture (Fig. 2.9 ) offers separate address and data buses for instruction codes and data.
Question:
The Harvard architecture (Fig. 2.9 ) offers separate address and data buses for instruction codes and data. Why is not it feasible to have separate buses for programmed I/O as well?
Figure 2.9
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The reasons are Complexity and Cost Adding separate buses for IO would increase the complexity of th...View the full answer
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Douglas Makokha
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Related Book For 
Real Time Systems Design And Analysis
ISBN: 9780470768648
4th Edition
Authors: Phillip A. Laplante, Seppo J. Ovaska
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