Low power architecture and design techniques for mobile handset LSI Medity™ M2

  • Authors:

  • Shuichi Kunie;Takefumi Hiraga;Tatsuya Tokue;Sunao Torii;Taku Ohsawa

  • Affiliations:

  • NEC Electronics Corporation, Kawasaki City, Kanagawa, Japan;NEC Electronics Corporation, Kawasaki City, Kanagawa, Japan;NEC Electronics Corporation, Kawasaki City, Kanagawa, Japan;NEC laboratories, Sagamihara City, Kanagawa, Japan;NEC laboratories, Sagamihara City, Kanagawa, Japan

  • Venue:
  • Proceedings of the 2008 Asia and South Pacific Design Automation Conference
  • Year:
  • 2008

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Abstract

This paper presents the low power architecture and design techniques for the mobile handset LSI Medity™ M2. M2 is a second-generation mobile handset LSI which integrates a Digital baseband and Application processor on a chip. M2 is capable of supporting 3.2 Mbps HSDPA, WCDMA communications, and rich, high-resolution multimedia applications, while power consumption is kept almost the same as in its predecessor chip M1. To reduce power consumption, M2 adopts hardware management clock control schemes, Multiple Vt transistors, an On-chip Power Switch, and Back-bias control. Preliminary measurement results show the design to work very well.