LSI Logic announces 64-bit MIPS core

LSI Logic has unveiled what it says is the world’s fastest 64-bit MIPS microprocessor core, the EZ4021 MiniRISC core. At 250MHz, the EZ4021 targets a range of communications applications.

The EZ4021 MiniRISC core is claimed to be the industry’s first 250MHz 64-bit MIPS embedded processor. Based on the MIPS III R4000 architecture, the EZ4021 is an optimized implementation of a synthesizable core. The EZ4021 is designed for mid- to high-end applications, including set-top boxes and image-processing engines, networking switches and routers and consumer products requiring 64-bit performance. Multiple designs based on the EZ4021 core are currently in progress.

The EZ4021 core is a highly integrated processor and processor subsystem that includes industry-standard EJTAG debug modules. At 12 mm2 in size, including 16K instruction and 16K data caches, the EZ4021 offers a power consumption of 2.6 mW/MHz. Operating at 250MHz under worst-case conditions, the EZ4021 includes features for improved memory performance. An integrated memory management unit with translation look-aside buffer (MMU/TLB) is compatible with Microsoft Windows CE.

The next generation of this core will feature an integrated floating-point unit (FPU), code compression, and a configurable cache option. The EZ4021 will also be adapted to the Advanced Microcontroller Bus Architecture 2.0 (AMBA) open-standard system bus. Recently adopted by LSI Logic, AMBA 2.0 facilitates the proliferation and reuse of complex intellectual property (IP) blocks to reduce SoC design cycle times.

Concurrently, LSI Logic introduced the EZ4103, its next-generation TinyRISC 32-bit microprocessor core suited for low-power, cost-sensitive applications. These EasyMACRO ASIC cores have been created in LSI Logic’s 0.18-micron process technology.

The EZ4103 TinyRISC 32-bit microprocessor, designed for low-power, cost-sensitive applications, offers a power consumption of 0.5mW/MHz, with performance up to 120MHz. Based on the MIPS II R3000 architecture, the synthesizable EZ4103 is backward compatible with its predecessor, the 0.25-micron EZ4102.

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