Accesses the net the time: In July, 2006

Article origin: Electronic engineering special edition author:

David Lammers Flies thinks the Cull semiconductor company face the correspondence infrastructure and the IP multimedia subsystem (IMS) the gateway application, develops section based on 4 StarCore SC3400 essence DSP engine □MSC8144. This chip starts in the this year third quarter to provide the sample, and will start the quantity in at the beginning of 2007 to produce. This section DSP chip uses the 90nm insulation silicon (SOI) the technology, in its four essences each essence all may provide reaches as high as the 1GHz performance. This signal processing component with a capacity is the 10.5MB DRAM parallel seal in the sole seal, and has 128, the 400MHz connection in the logic circuit and between the L3 memory chip. Flies thinks Cull network computing system department high-quality product marketing Manager Altaf Hussein to indicate that, MSC8144 is the MSC8122 substitution product, latter goes on the market in at the beginning of 2005. He stated that, the MSC8144 peak ＆#118alue performance for each second 16,,000 MMAC operation, is at present already performance highest DSP which issued. Now, telecommunication operation business needs to process the more and more rich media content, if uses H.264 and the MPEG-4 video frequency decoding technology content. Because then takes along the telephone and the media player screen size is smaller, the resolution Quite same not less than, needs to carry on the video frequency code conversion, soon the media content from one kind of standard format conversion to another kind of form, causes it also The high water gets up, the ship can the nature elevate to the signal processing performance request. Hussein disclosed that, flies thinks Cull Corporation to launch the cooperation with England's Trinity Convergence on the video frequency code conversion technology. Chart 1: MSC8144 in the DSP chip seal integrated the DRAM chip, its four essences have provided a serial RapidIO port In addition, this kind of four essences product also may use in the enterprise level VoIP gateway and the video frequency conference system, wireless 基站 as well as is at present been called the IP multimedia subsystem gateway the system. Flies thinks Cull number system department General Manager Lynelle McKay to indicate that, "This DSP engine in a network cover aspect remarkable application example, is realizes through the IMS gateway ' turns on (access anywhere) along with the place ' the correspondence." When the user change locates the position, they to the video frequency, the pronunciation and the data service propose the grade of service (QoS) the level request. But MSC8144 has "provides the performance by the low power loss seal which these fusion network function nfs needs." McKay indicated. Before this still could use in this section four essences engine based on StarCore product software, but flew thinks Engineer Cull's also to develop has used in Viterbi and a video frequency algorithm more highly effective special-purpose instruction. This company declared that, the double essence MSC8122 component which sells is comparing with at present, MSC8144 realized the performance to double, could under 30/second video frequencies CIF resolution, processing reach 3 times (13 but non- 4) the H.264 video channel 3 time of performance, and processed VoIP (G.729AB) the channel flux also enhanced from 168 to 336, probably doubled. Hussein indicated that, flies thinks Cull product processing module to use in MSC8144 its MSC8360 the PowerQuicc, this processing module contains uses in QuiccEngine which ATM, the IP processing and software duplicate uses. "This enabled us to be allowed to reduce the DSP essence the partial functions □very little to have DSP (die) to integrate the IP processing function in the identical bare piece," he said, "we had discovered the bottleneck was at, also pointed promoted section us to think carried on the balance to take the shed the processor." Uses programmable QuiccEngine, is helpful to provides QoS. Moreover, MSC8144 has must blocks the exchange structure, "this meant in this chip has not blocked the unit." Hussein indicated. When inquires about the power loss question, flies thinks Cull's marketing to correspond Manager Kim Mallinger to indicate: "The design team once made the estimate, if completely four essences work in trend maximum speed enhancement full speed rate (EFR) channel, in each channel working speed achieved when 800MHz, the total power loss approximately was 4.5W." In addition, through uses DRAM in the identical seal, MSC8144 does not need in view of each component to use exterior memory, thus has saved the 1W power loss compared to the competition solution. This product uses 783 base pins 29×29mm to invert the chip PBGA seal, provides the 1GHz essence and the 800MHz essence two kind of editions. The batch 10,000 instants, the unit price from 180 US dollars.