Mindspeed Introduces System-On-Chip Carrier Access VoIP Processors
The Comcerto 300 Series of access VoIP processors combines the company's field-proven system-on-chip (SoC) architecture and carrier-class software, enabling equipment manufacturers to quickly and efficiently develop VoIP-to-Ethernet line cards for MSANs, Ethernet/IP-enabled digital subscriber line access multiplexors (IP-DSLAMs) and next-generation digital loop carriers (DLCs).
"Our Comcerto 300 Series breaks new ground in what we believe is an emerging high-volume market opportunity and has already been selected by several leading vendors for their next-generation access platforms," said Tom Medrek, senior vice president and general manager of Mindspeed's multiservice access business unit.
"The opportunity to dramatically lower capital and maintenance costs while offering multiple revenue-generating services is encouraging carriers to deploy next-generation IP-packet access networks. We believe the next major wave of VoIP adoption will replace traditional Class 5 TDM switching with cost-effective multi-service access equipment, offering subscribers triple-play voice, video and data services," Medrek added.
Comcerto 300 Series access processors integrate a complete media access gateway in a single device by combining signaling and control processing, packet processing and a rich set of interfaces and features. By enabling "VoIP on a line card" the Comcerto 300 Series reduces system complexity and leverages the Ethernet-based access equipment architectures that already support xDSL termination line cards. The device family is also well suited for IP-PBX applications.
Technical Details
The Comcerto 300 Series device architecture incorporates two separate ARM11 processor cores and a DSP array coupled through a shared memory subsystem to simultaneously provide real-time, low-latency media processing, as well as call control and call setup functions. One ARM11 is dedicated to media stream packet processing, while the second ARM11 is dedicated to the signaling, call-control and board management functions. This functional division greatly simplifies software development.
Dual independent Gigabit Ethernet interfaces with integrated SerDes offer a rich set of configuration options including sGMII supporting direct backplane connectivity for high availability, high-reliability MSAN and IP-DSLAM architectures using "dual-star" Ethernet switch fabric architectures. The device also provides the ability to generate TDM clocks which are frequency-synchronized to a TDM network-generated packet stream.
Comcerto 300 Series processors are designed to support narrowband plain-old telephone service (POTS) line cards from 24 to more than 150 channels including echo cancellation, tone detection and other narrowband copper loop telephony features. Dual SPI, i2C, two UARTs, 32 GPIOs and an expansion bus connect to a wide array of devices.
Mindspeed also offers a Comcerto 300 Series design kit which includes a silicon support package software bundle (SiSP) for both VxWorks and Linux. An available Comcerto 300 Series evaluation module (EVM) provides all necessary memory, a TSI, four FXS POTS lines, one FXO trunk line, two 10/100/1000BaseT Ethernet interfaces (with SFP option for optical connectivity), and a T1/E1 interface. The EVM also includes a system expansion connector designed to mate with Zarlink Semiconductor's Legerity SLIC/SLAC EVMs, allowing customers to quickly and easily configure VoIP-enabled POTS systems from 8 to 72 ports.
SOURCE: Mindspeed Technologies, Inc.