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DTSTAMP:20240626T180035Z
LOCATION:Level 2 Exhibit Hall
DTSTART;TZID=America/Los_Angeles:20240624T170000
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UID:dac_DAC 2024_sess232_ETPOST159@linklings.com
SUMMARY:Enhanced State-Propagation based Vectorless IR-Drop Analysis Emula
 ting Realistic Silicon Behavior
DESCRIPTION:Engineering Track Poster\n\nSubhadeep Ghosh and Rishabh Singh 
 (Texas Instruments); Ruchin Gupta and Sushant Sharma (Cadence Design Syste
 ms, Inc.); and Gaurav Kumar Varshney (Texas Instruments)\n\nPre-Silicon IR
 -drop analysis accuracy depends on the logic toggling scenarios covered, a
 long with other factors. Vector-based IR drop analysis is more accurate as
  real stimuli are used, but generally cannot cover the whole design or tog
 gling scenarios, hence vectorless analysis is conventionally used. The key
  aspect in vectorless IR analysis is coverage of cells toggling scenarios.
  The State-propagation based vectorless analysis in Cadence Voltus is the 
 right approach to ensure Silicon behavior is mimicked in the Pre-Si IR ana
 lysis, as it assigns activity at sources and then propagates it through th
 e downstream logic-cone. But it lacks in a few aspects related how differe
 nt Event Generators can be enforced to toggle together, how more unique to
 ggling scenarios can be created and how to control the analysis based on t
 arget power. Three major enhancements are proposed to address those – back
 -propagation to enable concurrent clock and data network handling, increas
 ed scenario coverage by reshuffling flops, and target power based controls
 . The enhancements help improve the vectorless analysis significantly thro
 ugh realistic toggling activities, increased coverage and granular power c
 ontrols. This in turn helps in having more robust Pre-Si IR analysis closu
 re, enhancing chances of 1st pass Silicon success.\n\nTopic: Back-End Desi
 gn, Embedded Systems, Front-End Design, IP
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