Building an Efficient, Tightly-Coupled Embedded System Using an Extensible Processor White Paper
The increasing demand for better filtering and processing capabilities of the processor within embedded systems results in a trend to shift from 8-bit microcontroller tightly coupled embedded systems towards 32-bit processor bus-based embedded systems. As a consequence, the power, performance and area (PPA) ratio of these systems also shifts in favor of performance at the cost of power and area. However ultra low power and small area are the main drivers for these embedded systems. This white paper describes how closely coupled memories and processor extensions can be leveraged to improve the power and area of these embedded systems by making the bus infrastructure superfluous.
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