WHAT IS A MICROPROCESSOR?
MANUFACTURER:1995- JAN 2009AQUIRED BY2004-AUG 2009(2001)
Features of a Mobile ComputingProcessor Power efficient Stays Cool under load Does not compromise with processing speed
OVERVIEW OF THE CRUSOEThe HYBRID MICROPROCESSOR
Crusoe SpecificationsSERIES TRANSMETA CRUSOECODE TM-5800(128-bit)CLOCK RATE 1000MHzL1 cache 128KbL2 cache 512KbNo of cores...
Technology Behind The CRUSOE “AMOEBA” architecture. VLIW (Very Long Instruction Word) Code Morphing Software* Long run...
softwareProtectedmodearithmaticprefixesexcution
CODE MORPHING MECHANISMVLIW Processor CoreCode Morphing Softwarex86 OS/BIOSx86 ApplicationsA dynamic translation System
CONVETIONAL CPU• Use hardware to create and dispatch microops that can be executed in parallel leading tomaking them less ...
ARCHITECTURE OF CRUSOEL1 INSTRUCTIONCACHE64 KbL1 DATA CACHE64KbBUSINTERFACEDDR SDRAMCONTROLLERUNIFIED TLB256 ENTRIESSERIAL...
VLIW Technology The compiler determines which instruction can berun concurrently. The compiler generates grouped indepen...
LONGRUN:POWER MANAGEMENT• Typical Approach 1: Switch off processor quickly tosave power (Can give glitches)• Typical Appro...
BOTH PROCESSORS PLAYING A DVDPIII 105.5 CPIII VS CRUSE HEAT GENERATIONCRUSOE 48.2 C
A revolutionary innovationdies…• Optimization techniques could be tailored to createdifferent target architectures.• Works...
Crusoe Micorprocessor
Crusoe Micorprocessor
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Crusoe Micorprocessor

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A Seminar on Crusoe microprocessor

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Crusoe Micorprocessor

  1. 1. WHAT IS A MICROPROCESSOR?
  2. 2. MANUFACTURER:1995- JAN 2009AQUIRED BY2004-AUG 2009(2001)
  3. 3. Features of a Mobile ComputingProcessor Power efficient Stays Cool under load Does not compromise with processing speed
  4. 4. OVERVIEW OF THE CRUSOEThe HYBRID MICROPROCESSOR
  5. 5. Crusoe SpecificationsSERIES TRANSMETA CRUSOECODE TM-5800(128-bit)CLOCK RATE 1000MHzL1 cache 128KbL2 cache 512KbNo of cores/threads 1Transistor count 36.8 MillionManufacturing Technology 130 nmDie size 55 mm²Power consumption 7 Watt
  6. 6. Technology Behind The CRUSOE “AMOEBA” architecture. VLIW (Very Long Instruction Word) Code Morphing Software* Long run :Power Management**(Transmeta’s Patented technologies)
  7. 7. softwareProtectedmodearithmaticprefixesexcution
  8. 8. CODE MORPHING MECHANISMVLIW Processor CoreCode Morphing Softwarex86 OS/BIOSx86 ApplicationsA dynamic translation System
  9. 9. CONVETIONAL CPU• Use hardware to create and dispatch microops that can be executed in parallel leading tomaking them less power efficientX86 INSTRUCTION
  10. 10. ARCHITECTURE OF CRUSOEL1 INSTRUCTIONCACHE64 KbL1 DATA CACHE64KbBUSINTERFACEDDR SDRAMCONTROLLERUNIFIED TLB256 ENTRIESSERIAL ROMINTERFACECPU COREINTEGER UNITFLOATING POINT UNITMMUMULTIMEDIA UNITL2 Web CACHE256 KbPCI CONTROLLERSDR SDRAMCONTROLLER
  11. 11. VLIW Technology The compiler determines which instruction can berun concurrently. The compiler generates grouped independentprimitive instruction executable in parallel.CRUSOE CORE
  12. 12. LONGRUN:POWER MANAGEMENT• Typical Approach 1: Switch off processor quickly tosave power (Can give glitches)• Typical Approach 2: Change clock rate bysuspending processor and restarting• Crusoe 1: Adjust clock rate dynamically, withoutsuspension• Crusoe 2: Adjust voltage level• Result: Cubic power reduction, up to 30%.
  13. 13. BOTH PROCESSORS PLAYING A DVDPIII 105.5 CPIII VS CRUSE HEAT GENERATIONCRUSOE 48.2 C
  14. 14. A revolutionary innovationdies…• Optimization techniques could be tailored to createdifferent target architectures.• Workstation/Server chips were hinted at in thedocumentation.• A whole new family of mobile phone processorsunlike the odds of Nvidia’s Tegra™ and Qualcomm’sSnapdragon™ series

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