| Press Release
*****For immediate use February 26th, 2001 NEC and VoicePump Announce Joint Reference Design For Toll-Quality, Cost-Effective Voice Over DSL SolutionsTOKYO and PALO ALTO, Calif. - February 26, 2001- NEC Corporation (NEC) (NASDAQ: NIPNY, FTSE: 6701q.l, TSE: 6701) with its semiconductor arm in the United States, NEC Electronics Inc., and VoicePump Inc., a DSP Group (NASDAQ: DSPG) subsidiary, today announced the joint development of a complete turnkey reference design for Integrated Access Devices (IADs) supporting Voice over Digital Subscriber Line (VoDSL) applications. The VoDSL501reference design will allow customers to quickly bring to market devices such as DSL bridging and routing modems and broadband IADs for multi-tenant offices, apartment buildings and residential areas. The reference design combines a powerful NEC network controller and software with VoicePump's integrated digital signal processing (DSP) hardware and software and mixed-signal technologies for an integrated, versatile and cost-effective IAD solution. Unlike the general-purpose DSP technology used in packet voice communication designs, the VoDSL501 reference design is specifically optimized for use in VoDSL applications. By integrating VoicePump's complete voice band solution for VoDSL functionality into the reference design, including support for multiple voice channels and codec support, customers realize substantial savings in development time and cost. "The tremendous demand for bundling voice services with broadband access to homes and small businesses has increased the pressure on our customers to create next-generation integrated access devices and residential gateway platforms," said Kyuichi Hareyama, General Manager of NEC Corporation, 2nd System LSI Division. "VoicePump's application-oriented solution combined with NEC's network controller provides an efficient, highly-integrated and cost-effective method for enabling system designers to bring their VoDSL applications to market quickly", he added. "VoicePump's VP140 DSP was specifically designed to meet the needs of VoDSL applications by integrating virtually all VoDSL-spedific hardware and software components on a single chip," said Cole Erskine, Chief Technical Officer at VoicePump. "Combining the VP140 with NEC's uPD98501 network enables the creation of next-generation VoDSL products that are more feature-rich and cost-effective than the competition." The VoDSL501 utilizes NEC's µPD98501 network controller for system control and protocol handling, VoicePump's VP140 DSP for voice processing, and a DSL physical layer (PHY) interface. The NEC µPD98501 network controller features NEC's high-performance 64-bit 100 MHz MIPS RISC VR4120A microprocessor core. The controller also has an asynchronous transfer mode (ATM) cell processor, a communications device-class universal serial bus (USB) controller, and two 10/100 Mbps Ethernet controllers. In addition, the µPD98501 supports ATM adaptation layer 2 (AAL2), a standard that supports multiple channels of packetized voice in parallel with broadband Internet data access. VoicePump's VP140 is designed to function as the voiceband processing engine working in conjunction with the host processor. This provides product designers with an easy upgrade path for adding VoDSL capability to existing high-bandwidth "data only" applications. The VP140 is also fully compliant with DSL Forum TR-036 Annex A for Broadband Loop Emulation Services (BLES), offering toll-quality voice and the ability to add Custom Local Area Signaling Service (CLASS) such as Call Waiting/Caller ID. The VP140 integrates DSP Group's TeakLiteTM programmable DSP core with all requisite peripherals to perform four packet voice channels on a single processor. The highly integrated DSP includes program/data memory, a host processor interface, an analog front end, and analog-to-digital and digital-to-analog converters. The VP140 family also integrates the necessary DSP firmware to perform vital DSP functions, including speech compression and decompression, echo cancellation and associated telephony signaling functions. The VoDSL501 comes packaged with Wind River Systems, Inc.'s VxWorks® real-time operating system, as well as a free trial version of Wind River's Tornado®-II integrated development environment and C compiler. A live demonstration of the VoDSL501 reference design will be shown at the VoicePump booth, #405, at the Spring 2001 Voice on the NetTM show, March 20-23, at the Phoenix Civic Center in Arizona. NEC/VoicePump VoDSL Reference Design Hardware
Software
Documentation
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