user guide is delivered with every POP product. This document enables
the partner to understand techniques relating to performance exploration
and power reduction.
ARM provides implementation scripts through
the CPU deliverables that represent the best practice in a given EDA
flow. ARM uses this flow as a baseline for the implementation
benchmarking carried out as part of the POP development. As part of the
POP deliverables, ARM supplements the implementation scripts with
guidelines to allow POP licensees to re-produce the benchmarking result
within the shortest time frame possible. The documentation contains
guidelines on physical implementation and an overview on what parts of
the design are most critical to optimize performance. The guidelines
also help get the best co-location of cells related to different logic
within the hierarchy.
implementation results in Figure 3 provide a summary of an
implementation trial with and without the HPK and the FCIs. This trial
has been performed with a dual-core Cortex-A9 MP with NEON, floating
point unit (FPU), and L2 cache controller (PL310). In this study there
is significant improvement in maximum frequency using the Physical IP
components exclusive to the POP product.
typical implementation team spends several months trying to finish a
basic implementation of the processor, then iterating several times over
to achieve the desired performance targets. The POP represents a proven
and credible way to shorten your time to market (TTM) since the
iteration and optimization, including physical IP tuning, have already
been done by ARM. This saves valuable engineering resources, compute and
tool costs in getting your design to market.
POP: A Proven Success
have been successfully licensed and implemented at many of our
partners. Panasonic (Japan) and Rockchip (China) engagements are among
the announced companies with successful silicon-proven results.
June 2011, ARM and Panasonic announced the use of a wide range of ARM
technology in Panasonic’s recently launched UniPhier SoC for Internet
Connected Digital TV applications. ARM technology used in the UniPhier
SoC includes high-performance, low-power dual-core ARM Cortex-A9
processors running at up to 1.4 GHz, implemented through the ARM
Cortex-A9 POP for a low-power (LP) process. With this partnership,
Panasonic was able to deliver the next generation of market-leading
UniPhier SoCs for Internet Connected Digital TV devices.
February 2012, ARM and Rockchip announced the licensing of a wide range
of ARM IP for turnkey solutions targeting mass-market, cost-effective
Android tablets. This partnership included the Cortex-A9 POP, which
enabled a faster time to market for Rockchip. Also, the proven POP
approach resulted in a high-performance, low-cost, easy-to-design
platform. The combination of Rockchip’s market-leading design experience
coupled with a high-performance, energy-efficient processor resulted in
a platform that delivers captivating 3D gaming experiences and fluent
HD video play back as well featuring a rich set of memory interfaces and
cooperation between processor implementation, memory, and library
design, ARM is able to provide additional value and fine-grained tuning
and optimization to a partner processor implementation. ARM has now
delivered and enabled many partners with POP solutions that not only
deliver the core optimized Physical IP, but a complete solution that can
enable accelerated implementation within an unprecedented six to eight
weeks. The success of this product has been through a proven PPA point
and the proliferation of guidelines and implementation strategies to
reproduce the PPA results.
Copyright © 2012 ARM Limited. All rights reserved.
ARM, the ARM logo and Artisan are registered trademarks, and Cortex and Processor Optimization Pack are trademarks of ARM Ltd.