infoTECH Feature

May 11, 2011

Posedge Selects EnSilicas eSi-3250 Processor

EnSilica (News - Alert), an independent provider of front-end IC design services, announced that its high-performance eSi-3250 32-bit processor core is now licensed by Posedge, a supplier of semiconductor intellectual property and solutions, for an innovative, new Residential and SMB Gateway (News - Alert) solution that is said to perform Wire-Speed Routing at multi-gigabit rates.

As per the terms of this license agreement, Posedge will initially use its next generation Residential and SMB Gateway processor in a 40nm SoC project it is currently developing for a customer. Posedge is using both EnSilicas Windows and new Linux-based toolchain to underpin the development process.

EnSilicas eSi-RISC family is said to offer a wide range of high quality, highly configurable embedded processors that are easy to integrate. The processor subsystem is delivered fully targeted to customers’ ASIC technology, thereby reducing the integration effort. eSi-RISC processors is believed to offer the flexibility to define a range of hardware functions to optimize the silicon area.

Posedge’s new Residential and SMB Gateway processor is noted to be an innovative, 7-core design that now utilizes six eSi-3250 cores as identical datapath processors performing such functions as packet classification and packet editing, and another as a utility processor implementing high level functions, IPSec software and TCP offload.

Posedge is said to have selected the eSi-3250, the top-end core in EnSilicas eSi-RISC family of processors, following an extensive evaluation of three different CPU cores, as it exhibited the best cost/performance metrics.

“Of the three processors that we evaluated, the eSi-3250 was a clear winner, proving extremely conducive to the implementation of multicore SoCs, said Chakra Parvathaneni, vice president of marketing for Posedge in a press release.

“EnSilica has provided us with an extremely flexible set of cores in the configurations required to deliver the functionality we need within a single SoC. The eSi-3250 is also backed by a toolchain capable of supporting multicore debug and validation. We are now actively looking to use the eSi-RISC family in other solutions we are developing, including a new 802.11 WLAN MAC/PHY solution,” Parvathaneni added.

The eSi-3250s high code density is said to be well-suited to Posedge’s application, with the benefits of its high code density being multiplied by the seven cores used.

The eSi-3250s high code density is achieved through the ability to intermix 16-bit and 32-bit instructions, with all of the commonly used instructions encoded in 16-bits. The eSi-3250 also significantly reduces the silicon area in Posedge’s design. Also, as the cores were configured to Posedge’s precise requirements, with unwanted features optimized out of each core, significant silicon area savings is said to have achieved in its 7-core design.

“EnSilicas cost-effective and flexible licensing model has also given Posedge a distinct commercial advantage in the market,” said the company official in a statement.

Jai C.S. is a contributing editor for TMCnet. To read more of Jai's articles, please visit his columnist page.

Edited by Jennifer Russell

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