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LSI Logic DSP integrates 48Kwords of memory

Posted: 02 Sep 2002 ?? ?Print Version ?Bookmark and Share

Keywords:lsi logic? lsi403lp? configurable dsp? zsp dsp? digital signal processor?

LSI Logic Corp. has announced the availability of the LSI403LP configurable DSP that features 16Kwords of instruction memory, 16Kwords of data memory, plus 16Kwords of configurable on-chip instruction/data memory, allowing developers to configure on-chip instruction and data memory allocation into specific applications.

The 48Kwords of on-chip memory is claimed to support complete A/V applications, eliminating the need for external memory. These applications include such equipment as digital audio players, cable and DSL modems, and STBs.

The 16-bit fixed-point DSP is housed in a 208-pin PQFP casing and operates up to 150MHz for a maximum throughput of 600MIPS. It employs a four-way superscalar engine with four execution units, two MACs, and two ALUs to achieve its performance and allow the DSP to execute two multiply-accumulate operations in a single clock cycle while consuming <0.12mW/MIPS of power.

In addition, single cycle 32x32-bit multiply, bit-manipulation and 32-bit arithmetic, and logic operations are supported. The LSI403LP also provides two high-speed TDM serial ports with integrated G.711 PCM companding hardware, a single 8-bit HPI, external memory interface unit, and 4-pin programmable I/O port. Other on-chip peripherals include two 16-bit timers and an enhanced 8-channel DMA controller.

The LSI403LP is sampling now and will be in production in Q4 2002.





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