Cypress Samples GFP Framer Chip

Says it's the industry's first 2.5 Gbit/s channelized Sonet/SDH framer with Generic Framing Procedure

February 17, 2003

2 Min Read

Cypress Semiconductor Corporation (NYSE:CY) today announced that it is sampling the POSIC2G™ framer (CY7C9537), the industry's first 2.5 Gbps channelized SONET/SDH framer with Generic Framing Procedure (GFP). POSIC2G provides support for both resilient packet ring (RPR) protocol operation at OC-48/STM-16 (2.5 Gbps) rates and for advanced solutions for existing data transport infrastructure. This addition broadens Cypress's packet-over-SONET integrated circuit (POSIC™) portfolio of framers and further demonstrates Cypress's commitment to the framer market by optimizing voice, data, multimedia and cost-effective Ethernet services over SONET/SDH networks. The POSIC2G framer supports efficient RPR mapping with GFP, providing an increase in effective data bandwidth compared with other encapsulating protocols such as HDLC. GFP is a method of encapsulating any protocol—including Gigabit Ethernet, Fibre Channel, Enterprise System Connection (ESCON) and Digital Video Broadcast (DVB)—for transport over a SONET/SDH network. Using the POSIC2G framer in GFP mode, RPR packets transparently travel within the SONET/SDH frame over the existing telecommunications infrastructure. Channelization enables service providers to configure a number of individual channels that subdivide the bandwidth of a larger interface (OC-48). This provides better Quality of Service (QoS) options for client traffic and simplifies the design and operation of network equipment. "The POSIC2G device offers a flexible platform solution for our framer requirements," said Philip Kruzinski, director of hardware engineering at Luminous Networks. "It has simplified our linecard design, helping us to reduce our time-to-market with industry leading RPR systems.""The metro bottleneck will only get worse as more services such as voice-over-IP, video and data-centric computing, become ubiquitous," said Deepak Sharma, marketing manager of Cypress's Data Communications Division. "By enabling RPR implementations, the POSIC2G framer allows support of the newer services while simultaneously supporting traditional carrier-class features such as resiliency, restoration and quality of service." Resilient packet ring technology is designed for efficient transport of packet data over a ring topology. This technology simultaneously supports traditional carrier-class features such as performance monitoring, resiliency, and data restoration, while offering newer services for packet data and latency sensitive traffic. Operating at Layer 2 (data link), RPR allows service providers to harness the capacity of SONET/SDH and empowers them to offer profitable Ethernet services POSIC Framers

The POSIC2G device is the most recent addition to Cypress's portfolio of POSIC SONET/SDH framers. The POSIC2G framer is pin compatible with the revolutionary POSIC2GVC™ device, enabling a risk free migration of designs to next-generation features. The POSIC2GVC OC-48/STM-16 framer provides virtual concatenation per ITU G.707. For further information regarding POSIC2G go to the Cypress website at Product Availability and Pricing

The CY7C9537 is available in a 504-ball BGA package for both commercial (CY7C9537-BLC) and industrial (CY7C9537-BLI) temperature ranges. Pricing in quantities of 1,000 starts at $180 per unit for the CY7C9537-BLC. For more information go to the Cypress website at

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