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Embedded - Microprocessors

KMPC8349EZUALFB is a PowerPC based microprocessor that is integrated in single chip. It is designed in the advanced 65nm low-power process technology and is optimized for low-power multimedia applications. The product belongs to the Freescale EZUALFB series which features a virtualizing system architecture with superior performance, scalability, power efficiency, and higher system requirements of consumer products.

Application Field

The microprocessor KMPC8349EZUALFB is mainly used for consumer electronics such as digital TV, set-top box, digital video recorder, IPTV, portable media players, etc. It has many applications, such as high speed communication, high-fidelity audio and video decoding, security was settled, vector and bitmap graphics, digital signal processing, 3D graphics, etc.

Working Principle

KMPC8349EZUALFB microprocessor is based on the 32-bit PowerPC core architecture, which is suitable for embedded systems with high real-time performance, embedded scalability and low power frequency such as consumer multimedia products. The core runs up to 440MHz and up to 400DMIPS; the core design can highly utilize the breakthrough embedded virtualization technology. It uses EZUALFB virtualizing system architecture to support multiple type1 hypervisor scheduling, one of which is independent partition managed by secure OS and the other is common partition managed by user OS. The security partition on top of the common partition can realize different resource management and development support for different applications.

The microprocessor has a Power PC core with an integrated floating point unit that supports single and double precision operations.It has built-in PowerCC895 instruction set which provides higher computational performance with up to four General purpose register windows. The processor also supports dynamic branch prediction, Instruction prefetch and branch target buffers, etc. In order to improve the performance of secure functions, the design of ultra-low leakage current is adopted.

The core adopts advanced dynamic voltage scaling technology, which can effectively reduce dynamic power consumption and control the power of the system. It also supports power-saving mode, hardware-level aggressive power management, Self-Refresh and various low power software optimization technologies. The product integrates SPI/UART, can bus, JTAG, NAND Flash Controller, IDE/CF Controller, I/O port, timer, USB/host/device, etc. It also has 128Kb L1cache, 1Mb L2Cache, DDR2/DDR3 controller memory interface to support Gigabit Ethernet, USB2.0, WIFI, and others.

Conclusion

KMPC8349EZUALFB is a new generation of microprocessor with the advantages of low power and high performance. It can support multiple type1 hypervisor scheduling, has advanced 65nm low-power process technology, supports PowerPC core architecture, integrated floating point unit, PowerCC895 instruction set, dynamic voltage scaling technology, 128Kb L1cache, 1Mb L2Cache, DDR2/DDR3 controller memory interface. It is widely used in various embedded applications, multimedia products and promotion.

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