![]() 1 illustrates an example multi-clock domain circuit design using related clock. 210000001550 Testis Anatomy 0.000 description 1 Data tokens used in other clock domains may be transformed based on the.The fundamental idea of hybrid prototyping is to simulate a design with multiple cores by creating an emulation kernel in software on top of a single physical instance of the core. 239000004065 semiconductor Substances 0.000 claims 4 Abstract: This paper presents novel techniques of using hybrid prototyping for early power-performance analysis of MPSoC designs with multiple clock domains.Publication of US20060195288A1 publication Critical patent/US20060195288A1/en Status Abandoned legal-status Critical Current Links Assignors: ECKELMAN, JOSEPH E., HUOTT, WILLIAM V., MCNAMARA, TIMOTHY G. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by International Business Machines Corp filed Critical International Business Machines Corp Priority to US11/056,874 priority Critical patent/US20060195288A1/en Assigned to INTERNATIONAL BUSINESS MACHINES CORPORATION reassignment INTERNATIONAL BUSINESS MACHINES CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Learn how to use Multiple Clock Domains within System Generator, making it possible to implement complex DSP systems. Electrical testing, Network-on-Chip, Multi-clock domain, Test. Original Assignee International Business Machines Corp Priority date (The priority date is an assumption and is not a legal conclusion. Network-on-Chip (NoC) at multi-clock domains by digital logic circuits. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Abandoned Application number US11/056,874 Inventor Timothy McNamara Joseph Eckelman William Huott Current Assignee (The listed assignees may be inaccurate. Google Patents Method for at speed testing of multi-clock domain chipsĭownload PDF Info Publication number US20060195288A1 US20060195288A1 US11/056,874 US5687405A US2006195288A1 US 20060195288 A1 US20060195288 A1 US 20060195288A1 US 5687405 A US5687405 A US 5687405A US 2006195288 A1 US2006195288 A1 US 2006195288A1 Authority US United States Prior art keywords speed clock domain paths test Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. In addition, clock gating structure, coupled with virtual clock grouping constraint is implemented to guide stuck-at ATPG generation process. On-chip clock controller (OCC) is used to yield better at-speed test coverage and pattern generation. Google Patents US20060195288A1 - Method for at speed testing of multi-clock domain chips This paper proposes a test strategy for improving SoC ATPG testing. With heterogeneous multicore (e.g., ARM's big.LITTLE), different clock domains is almost a requirement if different cores are expect to operate at the same time (different core microarchitectures will typically have different frequency ranges).US20060195288A1 - Method for at speed testing of multi-clock domain chips A quick-ish search seems to indicate that mainstream Intel processors do not support different frequencies for different cores, though they implement different clock domains (e.g., 元 cache and ring interconnect and cores having separate clocks, allowing the 元 to be snooped (e.g., by the GPU) at full speed without forcing the cores to go to full speed). Lefurgy et al., "Active Management of Timing Guardband to Save Energy in POWER7", Figure 1, PDF), SPARC T3 had " Six clock and four voltage domains" (Wikipedia is quoting Jinuk Luke Shin et al.'s " A 40nm 16-core 128-thread CMT SPARC SoC processor" this does not provide per-core clock control), Intel's Silvermont provides a PLL per module (pair of cores sharing an L2 [see David Kanter's " Silvermont, Intel’s Low Power Architecture"). E.g., AMD's Phenom (2007) " will allow individual cores to request different clock speeds", IBM's POWER7 (2010) provided a digital phase-locked loop per core slice (Charles R. Modern processors (and SoCs) often have multiple clock domains.
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