08-03-2011, 10:07 AM
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ADVANCED EMBEDDED MICROPROCESSORS AND APPLICATIONS
INTRODUCTION
MICROCONTROLLERS AND EMBEDDED PROCESSORS
DESKTOP Vs EMBEDDED
EVOLUTION OF EMBEDDED MICROPROCESSOR
The 1980s
• RISC was introduced
Early 1990s
• RISC versus CISC
• Power consumption, code density, and integration
Late 1990s
• 32-bit embedded processors
• Java and Windows CE
After 2000
• Multimedia and DSP
• Multithreading
32- BIT EMBEDDED PROCESSORS
Intel’s i960
Motorola’s Coldfire,
Sun’s Sparc,
Hitachi’s SuperH
Advanced RISC Machines’ ARM
FIELD OF APPLICATIONS
• Video game consoles
• Handheld palmtop
• Automobile
• Cellular phones
• Mobile Sets
• Set-top boxes and DVD
• Digital cameras
CLASSES OF EMBEDDED PROCESSORS
FEATURES OF EMBEDDED PROCESSORS
Reducing power
consumption
Performance
Code density
Peripherals and higher integration
Multimedia acceleration
HARDWARE REFERENCE MODEL
• Purpose processor
• Power harvesting subsystem
• Wireless transceiver
• 50K RAM.