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Accelerator replaces base station FPGAs, ASICs

Posted: 23 Jun 2008 ?? ?Print Version ?Bookmark and Share

Keywords:multistandard baseband accelerator? FPGA? ASIC? DSP?

Freescale Semiconductor has introduced the MSBA8100, a chip that it calls the industry's first multi-standard baseband accelerator. The MSBA8100 eliminates the need to develop FPGA or custom ASIC devices for base station designs. The first accelerator to support 3G-LTE, the MSBA8100 also supports the emerging WiMAX, HSPA+ and TDD-LTE standards. The MSBA8100 also supports legacy 2G/3G technologies.

The MSBA8100 supports Turbo and Viterbi decoding, FFT, Inverse Fast Fourier Transform (IFFT), Discrete Fourier Transform (DFT) and Inverse Discrete Fourier Transform (IDFT) operations currently performed in FPGA or custom ASIC devices. It also accelerates rate de-matching for various wireless standards and security algorithms. These include EDCH for 3GPP, sub-block de-interleaving and de-interlacing with HARQ support for 3G-LTE and WiMAX.

The MSBA8100 contains two configurable RISC engines. It also includes 512Kbytes of internal memory, a DDR2 memory controller and a PCI controller. The device is to be used with Freescale's MSC8144 DSP. The accelerator communicates with the MSC8144 DSP and the antenna through two high-speed serial RapidIO interfaces, each scalable up to four lanes at 3.125Gbaud.

A MSBA8100ADS development board is available from Freescale. The board ships with the MSBA8100 device and a MSC8144 DSP, and includes an AMC expansion connector. Frescale also offers reference software kernels.

MSBA8100 device samples are expected to be available during Q3 08.

- Kenton Williston
DSP DesignLine

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