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A cellular network includes the air interface or bands, protocol standards or modes, base stations, and handsets. In the United States today, there exists AMPS, TDMA (IS-136), GSM, CDMA (IS-95) modes, while the bands are 800 and 1,900 MHz for the United States and 900 and 1,800 MHz for Europe. There are about 60,000 base stations in the United States, accounting for a total infrastructure of about $15 billion and some 70 million handsets, at a total infrastructure cost of about $17 billion.

ERJ-PA2D9762X_Datasheet PDF

A cellular network includes the air interface or bands, protocol standards or modes, base stations, and handsets. In the United States today, there exists AMPS, TDMA (IS-136), GSM, CDMA (IS-95) modes, while the bands are 800 and 1,900 MHz for the United States and 900 and 1,800 MHz for Europe. There are about 60,000 base stations in the United States, accounting for a total infrastructure of about $15 billion and some 70 million handsets, at a total infrastructure cost of about $17 billion.

Mercury's $33,000 developer's kit is comprised of software and a 6U VME board (at right) with an eight-port Race++ crossbar switch and two daughterboards, with four 333-MHz PowerPC 7400s, 4 Mbytes of L2 cache, 256 Mbytes of SDRAM and ASICs.

The Mercury software provides a full software development environment, including a compiler tool chain, interprocessor communications library and scientific algorithm library with image and signal-processing libraries hand-coded for AltiVec execution. Mercury will also field AltiVec-based products for its PCI and proprietary systems,” Jaenicke said. Delivery is 90 days ARO.

ERJ-PA2D9762X_Datasheet PDF

Sky, in turn, has announced its Merlin, a 6 x 6-inch daughterboard containing four 333-MHz 7400s, up to 1 Gbyte of memory and a 320 Mbyte/second SKYchannel interface.

One Merlin fits on a 6U VMEbus board for 10.6 Gflops of performance in a single slot, according to Sky, and four Merlins fit onto a 9U VME board, hitting the 42 Gflops mark. Fast floating-point processing with a projected price/performance ratio of $3 per Mflops makes Merlin ideal for the most demanding image and signal-processing applications such as radar, sonar, medical imaging and image analysis,” said Bob Hoenig, Sky general manager and chief technology officer.

Merlin, supported by the SKY-vec development environment, is available 90 days ARO with prices starting at $25,000 in single-unit quantities.

ERJ-PA2D9762X_Datasheet PDF

Mercury Computer Systems Inc.CALL (978) 256-1300www.mot.com/SPS/PowerPCEETInfo No. 632

Sky Computers Inc.CALL (978) 250-1920www.sky.comEETInfo No. 633

ERJ-PA2D9762X_Datasheet PDF

CAMPBELL, Calif. — Zilog Inc. is retooling its venerable Z80 device to focus on one of the industry's newest market drivers, the online world. The company has enhanced the architecture, which is one of the industry's oldest, with digital signal processing capabilities to facilitate real-time, online operations.

The new version is the eZ80, which merges an 8-bit processor with DSP features and a TCP/IP stack. This is an enhancement to the original architecture, but really it is something totally new,” said Didier Le Lannic, senior vice president and general manager of the communications division of Zilog. We want to position this as an Internet engine.”

China's first application of SDC technology will be a software-defined set-top box for use in a variety of information devices expected to connect future cable networks. Most new functions are stored on front-end servers and can be downloaded by users through the cable system modems. Our product [will be] different from a set-top box,” Du said. You just need to download software from the server for a new function.”

The Cathay Roxus platform will support existing image-compression decoding standards, including MPEG-1, -2, -4 and -7, as well as future video specifications. It will also support MPEG, MP3, AC-3 and future audio standards.

Cathay Roxus will use the software-defined approach for data encryption and decryption, forward error correction, modulation and demodulation, and hardware and software upgrades.

Roxus Electronics, meanwhile, is designing a coprocessor for compute-intensive tasks at the physical layer. Its X-bridge chip will be used with a partner's processor to increase speed and cut costs. Meanwhile, research on network-layer technology focuses on better media access control (MAC) and other protocols for a variety of international digital video standards.

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