EnSilica have supported Alcatel-Lucent in the development of a Remote Radio Head FPGA.
EnSilica were responsible for the design and verification of a number of modules within the RRH processing chain along with the integration and verification of the top level design prior to timing closure & fitting in the chosen FPGA device. The project also included the integration of CPRI IP from the FPGA vendor into the design.
The project was divided into a number of phases, ending with the delivery of a timing closed/functionally verified drop into the wider Alcatel-Lucent organisation for HW integration and SW testing. On-time delivery was a paramount requirement to ensure the testing team were kept fully utilised and the delivery commitments to the end customer were met.EnSilica succeeded in meeting all delivery dates for the project.
EnSilica adopted a rigorous verification methodology – developing an extensive set of self-checking testcases verifying each module as well as chip level simulation. This was significantly different from previous FPGA designs where HW testing was started after minimal simulation. This approach resulted in significantly faster device validation – with each drop showing a high degree of functionality from first switch-on. The availability of comprehensive test-cases ensured that any HW issues could be quickly investigated and resolved.
This was the best HW bring-up we have ever experienced. The quality of deliverables from EnSilica provided high confidence that the demanding timescales for the project could be achieved.
A key benefit for Alcatel-Lucent was the ability of EnSilica to re-size the team based upon the scope of the work needed for a particular phase. The EnSilica team ranged from 2 engineers up to a maximum of 7 during the peak phases of the project. Being able to work on multiple drops in parallel significantly reduced the overall project timescales. Most of the support was undertaken at EnSilica’s dedicated design centre in Wokingham, along with on-site support as required. The availability of project management support from EnSilica ensured that Alcatel-Lucent were always fully informed of the status of work being undertaken, schedule and issues requiring attention.
EnSilica have shown themselves to be a flexible and highly skilled design services partner and certainly someone we would use again on future projects.
Technical Manager for Digital Hardware
EnSilica, a leading provider of IC design services and system solutions have recently completed a major project with a Tier1 mobile communications company, to deliver a world-class Remote Radio Head (RRH) solution based on the Altera’s High End Stratix FPGA technology.
EnSilica were responsible for design and verification tasks within the RRH processing chain along with the integration and verification of the top level design, followed by timing closure & fitting. Altera also provided CPRI IP, customised for the specific application and extensive use was made of the Altera DSP Builder tools to generate timing-optimised register transfer level (RTL) code.
The project was divided into a number of phases, ending with the delivery of a timing closed/functionally verified production device ready for HW integration and SW testing. On-time delivery was a paramount requirement to ensure the testing team were kept fully utilised and the delivery commitments to the end customer were met.
EnSilica succeeded in meeting all delivery dates for the project.
This was a great example of how the combination of EnSilica’s high quality design services offering and Altera technology and IP can deliver the best possible solution for our customers. For some customers adopting leading-edge FPGA technologies can be daunting, but with EnSilica engaged, customers can be totally confident that the development is in safe hands and they will have a production ready device in the shortest possible time. This is good for the customer and good for Altera.
EnSilica are a member of the Altera Design Services network, bringing together companies with the experience and expertise to enable Altera’s customers achieve their challenging product development needs – lowering risk and accelerating time to market.
Major Account Manager, Altera
Worldwide Partner Program Manager, Altera
DELTA’s design team developed a low-power ASIC for a wireless tag application using the EnSilica eSi-3200 32-bit processor IP core. The integration process was very smooth, with an excellent set of deliverables, documentation and examples. We had the processor core integrated with our own peripheral IP very quickly. The tools and debug facilities were very professional including support for both Linux and Windows, there were some excellent features to support hardware and software co-simulation which reduce the overall verification cycle.
“DELTA and our end customer are very pleased with the quality of the IP and the overall power saving it delivered over using other cores, we will certainly use it on other projects requiring a low-power, silicon efficient MCU.”
Executive Vice President
“Dialog Semiconductor has used EnSilica to provide additional design and verification expertise on numerous projects connected with the development of high volume ICs.
EnSilica have applied a range of advanced techniques to address the verification challenges of these devices and support the successful delivery of high quality silicon. Throughout the projects, EnSilica have demonstrated commitment to the projects providing a mix of on-site / off-site support and the ability to adjust the size of the team based upon the demands of the projects – to allow projects to continue in parallel or provide additional resource at key phases of the projects to ensure that tapeout dates are achieved.
The use of a trusted and highly skilled design services partner to support our internal development team, provides several benefits for Dialog Semiconductor and has been a contributory factor in the delivery of successful designs to our customers.”
Director of Engineering – Digital Systems
At the start of our new project, there were several candidate CPUs for this product. After an extensive technical and commercial evaluation Dongbu HiTek selected the EnSilica eSi-1600 processor IP and peripherals set for our project.
While evaluating their IP, EnSilica’s team responded fast and professionally and had all the relevant experiences to support our project. Even though there is no local office in Korea, they supported in real time.
They understood our project requirements and we found the IP had very competitive performance. During developing our project, EnSilica team proposed some custom instruction specific to our application that saved important memory and power.
Their quality IP and support made our project on-time and a success. Through silicon verification, there was no CPU issue found and we were very pleased with the result.
We have decided to use EnSilica’s IP for our next project and we are confident that EnSilica will again provide the best service and support to make this another success project.
EnSilica provided RTL-to-GDSII and DFT services to support the development of our first Smart Building technology ASIC development. The work was carried out professionally with clear reporting throughout the project, and all deliverables were of high quality.
EnSilica’s team also responded very quickly to some late RTL changes by pulling out all the stops and working at the weekend to re-generate the GDSII in time for our tape-out date.
The teams response and professionalism was impressive. Thanks from all of us at enModus.
Founder and CEO
“EnSilica engineers have provided a wide range of design service on a number of chip development projects for us and undertook key roles in the development of two complex SoC products. Imagination Technologies has been very pleased with the results produced by the EnSilica design team and we will continue to use them on future projects.”
VP Engineering, POWERVR Visual IP
My team has been working with EnSilica and the eSi-RISC processor for a number of years over a number of IC developments, and the level of service and quality of the IP they provide is excellent. During the processor evaluation, EnSilica’s level of support was excellent. We were able to demonstrate that the configurability and custom instructions provided us with real technical differentiation compared to other CPU cores.
As part of the license agreement, EnSilica also provided a design services package to deliver a complete multi-processor AMBA sub-systems including cache memory, USB and all the key peripherals required for our application. This included external APB buses to allow us to connect our own IPs. The delivery came complete with software API and examples allowing us to quickly implement our own application code on an FPGA platform in parallel with the chip development.
During the process we requested a number of changes to the system which were turned around very quickly and efficiently. Outsourcing the processor sub-system to EnSilica helped reduce our IC development time and allowed us to focus on our end application specific IPs and differentiation. The flexible multi-processor architecture has helped us developed novel security features to meet FIPS security certification.
We plan to continue to use eSi-RISC IP in future products and will use their services to support our ongoing chip development activities.
Kili Corporation, Toronto, Canada
Founder and Co-President
Moortec outsourced RTL to GDSII implementation work of a number of critical digital control blocks on a large mixed-signal ASIC to EnSilica.
The work was completed successfully and smoothly. The two teams worked very closely and well together. The Moortec design team greatly appreciated the professionalism and support of the EnSilica PnR team and project management support and we look forward to working together again in the near future.
“Having had a number of bids, we turned to EnSilica to provide a cycle-accurate C model of a major signal processing subsystem, a project for which timescale was critical.
EnSilica responded rapidly with a strong, well presented commercial and technical proposal, and were very easy to work with. Their work was first class, including comprehensive reporting and very professional deliverables. The project was completed to budget and on schedule. We would gladly work with them again.”
“Navtech’s objective was to develop a new version of a radar system to reduce size, lower cost, and improve reliability by integrating as much functionality as possible into a single device. A standard single-chip solution was not available and Navtech engaged EnSilica as a design partner to produce a custom design. EnSilica performed a study of the project requirements and advised Navtech that implementation in a single Altera FPGA device was possible. Approximately 80% of the design was delivered by EnSilica and the project was completed on time and within budget. The result was a cost saving over the previous solution with significant size reduction and improvement in reliability. We highly recommend EnSilica and will be using them on future projects.”
Cirque is in a very competitive, high volume consumer electronics market space. We have been shipping computer touchpad controller chips since 1991.
We recently wanted to update one of our touch controller chips to enhance several analog and digital features and to reduce the cost. Three months before we planned on finalizing the digital design, we learned of an open source, royalty free 32-bit RISC CPU core called RISC-V. Our current CPU core choice worked fine, but the toolchain was unsupported, and the royalties were too high for our market space. This new CPU core option looked very attractive, but it wasn’t quite a drop-in replacement for the current core. This RISC-V core also didn’t have some of the peripherals needed, including timers and UART. Changing the CPU core in an ASIC is typically a big commitment and has a considerable impact on system performance, including firmware code development. We decided to spend 2 weeks shopping for other CPU core options that might be a better fit for our application.
We quickly found a wide range of eSi-RISC CPU cores on EnSilica’s website. These cores had very competitive specs and came with all the other peripherals we needed. Their website was easy to navigate and contained all of the information we needed without requiring an NDA to access it.
We considered other CPU vendors, but we found that their websites did not provide adequate information. To obtain information from these vendors we were required to secure NDAs and multiple email communications. This led to significant delays in gathering the needed comparative data for us to make a decision.
This chip revision had a very aggressive design cycle. Because of this, one of our primary requirements for replacing the CPU core was that it needed to be a near drop-in replacement. The current CPU core and in-house peripherals used a non-standard peripheral bus which was not available with the eSi-RISC core. After describing this issue and the peripheral bus function to the EnSilica engineering team, they were able to generate a peripheral bus conversion module and delivered a full RTL package for us to evaluate in one day, including the peripherals that we needed and all of the customized parameters that were required for our design. EnSilica did not require additional NDA agreements to get the evaluation, which saved precious time.
Some of the EnSilica cores have optional cache memories. This was very intriguing, but we weren’t sure how much added performance it would provide our design. EnSilica suggested we try it out and we could easily remove the option if it wasn’t needed. They provided the cache option in the evaluation RTL so that we could run simulations and synthesis to see if it was a good fit for us. In the end, we decided not to use the cache, but we were impressed by how quickly they responded to changing parameters.
During the integration and verification, we had a number of questions and debug issues that came up. We were very pleased with the responsiveness of the EnSilica support team. Whenever we emailed questions, no matter the time of day, we almost always got an immediate response and most of the time with a concise and complete answer.
We planned on having 2 of our engineers do the integration and verification, but one was predisposed on another project for almost the entire 2 months. The EnSilica RTL was easy enough to read and to debug that, along with the help of one of their support engineer, we met our digital completion schedule with only one engineer on a tight deadline.
The eSi-RISC core was very attractive for many reasons:
· No royalty payments
· Low instance cost
· Flexible architecture made it a near drop-in replacement of our previous CPU core
· Impressive performance specs
· Low gate count
· Came with the peripherals we needed
· Excellent upfront sales documentation that answered all the competitive and integration questions
· Very good implementation guides and user guides
· Excellent technical support based in the UK
· Easy to read RTL
· Test bench modules that make debugging easy
We have been very happy with all aspects of the eSi-RISC cores and we highly recommend them
EnSilica team supported the verification of the modem CPU which is an integral IP in MediaTek’s leading edge SoC’s. They joined us in the early stages of the project, helped stabilize the design and make it tape-out-ready. All members of their team worked efficiently with our internal teams, shared their know-how and were quite receptive to our requirements and methodology. Overall, it was quite a pleasant experience for us to engage Ensilica team in this project and depending on need we would be glad to co-work with them again in future”
Senior Director, MediaTek
After being recommended to us by another mixed signal IC company we engaged EnSilica to perform the layout of the digital block in our RF IC.
EnSilica’s execution of the project was faultless, they provided my team and I clear feedback on issues with the RTL and timing constraints as well recommending the fixes to make the design run through cleanly. They were very responsive and turned round the design promptly, the database was well structured and had all the reports and scripts we needed to maintain the design.
EnSilica understood the issues of working on digital blocks of mixed signal IC and were easy to work with both on a technical and commercial level. The project went very smoothly and we intend to engage them again for our next project.
“EnSilica supported the verification and debug of the PNX8543 design. All members of their team were highly experienced, worked efficiently and contributed to the overall quality of the verification of this complex SoC. We intend to use their services again in the future.”
GM SoC Design Centre
To support our innovative wired packet processor sub-system IP, Posedge required multiple instantiations of an embedded processor with 3 different configurations. Due to the number of cores in the system the key selection criteria was a low gate-count and good code density as well as the requirement to support multi-core debug.
Of three processors evaluated, only the eSi-3250 exhibited the combination of functionality and flexible licensing that we needed to take our product development plans forward. EnSilica even created a special version of the eSi-3250, with the option to switch the caching capability on and off, giving us extra flexibility.
The eSi-3250 is also backed by a professional toolchain capable of supporting multi-core debug and validation. We used both the Windows and Linux version that are both easy to use and very stable. Posedge are now standardising on the eSi-3250 for all our wired/wireless networking IP solutions.
EnSilica have provided excellent support to our USA and Indian based teams through the complete design cycle as well as during silicon bring-up.
Vice-President of Marketing
Semisens could reduce die size and lower power consumption of our touch screen controllers using EnSilica’s IPs. Those devices are now successfully released to the market. Benchmarking performed by one of end customers showed that Semisens touch controller consumes lowest power among touch controllers available in the market. In addition to the value the CPU core, EnSilica’s IP provides ease of integration and verification with other logic blocks. Quick application support of quality apps engineers also made our IC design engineers feel comfortable to work with EnSilica. With all those benefits brought to our chip design, EnSilica is now selected as the sole CPU vendor for Semisens. We are glad that the right partnership made our device achieve the best performance and the highest value in this competitive market.
SoC Design Manager
“EnSilica was recommended by electronics supplier EBV as a local and experienced FPGA design services company with an excellent reputation. We also tendered the work to other suppliers for comparison. We were impressed with the budgetary quote and the team’s overall competence. After completing work on the transmit FPGA signal processing to budget and on time, we engaged EnSilica for the receiver design. This enabled us to replace an Analog Devices floating point DSP, SSRAM and SDRAM with a single low-cost Cyclone III FPGA, leading to a significant cost saving.
The deliverables from EnSilica have always been of the highest quality and the project management has been highly effective. We would recommend EnSilica without hesitation, and look forward to working with them again in the future.”
After an extensive search, we found EnSilica’s eSi1600/3200 to be an excellent match for our controller IP requirements. We were very pleased with the quality of the code and the documentation. Technical support was perfect during the entire engagement, always prompt and relevant. The ASIC implementation of the core performed as expected in the first tape-out. As an early-phase start-up with a tight R&D budget, Solantro benefitted from an excellent technical and business partnership with EnSilica, allowing us to move to the next level.
Director IC Engineering
Solantro Semiconductor Corp.
“EnSilica were selected by Thomson for the development of a very important subsystem- one of the most complex designs I have specified. The result was excellent (a few bugs were caused by ambiguities in the specification) and the value for money was even better (very autonomous work, reasonable requests for support). The true reason I recommend EnSilica is integrity. The contract was fixed price. They notified us early about their problems and then worked even harder to fix them in time. Contrary to other companies I have worked with, they did not play games to get more money. If they commit to a deadline and a budget, then they will deliver. If you have an RFQ for an important design task requiring senior engineers, you should send it to EnSilica.”
IC Technical Lead
Ensilica were knowledgeable, flexible and responsive to the needs of our system level design project. The contribution they made to modelling and evaluating the transceiver performance helped us greatly in achieving our goals and saved us a great deal of time.
Xtendwave licensed EnSilica’s eSi-3200 32-bit processor core to power our EverSet® time code receiver solution for decoding the WWVB atomic timekeeping signal. The processor IP came fully integrated with a complete set of peripherals, memories for our chosen technology and external interfaces to connect our own IPs. EnSilica provided Xtendwave with a version of eSi-3200 optimized for the EverSet® application, configuring it to reduce the overall processor gate count significantly compared to the competing solution. The optimized version also featured custom trigonometric instructions reducing cycle count by 30% and a 2Kbyte reduction in valuable memory space.
EnSilica also provided additional services including full RTL to GDSII development services and development of scan vectors and software for memory testing and BIST to support our IC production. The services were delivered to schedule and budget and always to a high quality. EnSilica’s team was easy to work with and provided us with the expertise and skills we needed to get a quality solution in a very short timeframe. We would recommend EnSilica to any fabless semiconductor company looking to accelerate their chip development.
Senior Design Engineer