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Designing SOCs with Configured Cores by Steve Leibson

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5.1. SOC Architectural Evolution

SOC architectures have evolved in lock step with silicon-fabrication technology. Figure 5.1 shows a simple, single-bus SOC architecture that incorporates one processor core, memory, and some peripheral devices. The system architecture in Figure 5.1 is the stereotypical microprocessor-based system design that’s remained unchanged since the first commercial microprocessor became available in 1971.

Figure 5.1. The simple, single-bus, microprocessor-based system architecture has remained unchanged since 1971.

As the on-chip SOC microprocessor core clock rates climbed from tens to hundreds of MHz, bus bandwidth started ...

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