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ARM720T Processors    
ARM720T





ARM720T
32-bit RISC processor with 8kByte Cache, Write Buffer and MMU built around an ARM7TDMI core
The ARM720T macrocell is a 32-bit embedded RISC processor designed for devices using a platform operating system, such as Windows CE and Symbian OS. In addition to the CPU core, the ARM720T features an 8k Byte unified cache and MMU together with an AMBA-compliant AHB bus interface. It is delivered as a hard macrocell optimized to provide the best combination of performance, power and area characteristics. The ARM720T macrocell enables system designers to build open platform devices requiring small size, low power and high performance.
Applications:
  • Personal audio (MP3, WMA, AAC players)
  • Entry level wireless handset
  • Pager
  • Ink-jet/bubble-jet printer
  • Digital still camera
  • PDA

Features:
  • 32/16-bit RISC architecture (ARMv4T)
  • 32-bit ARM instruction set for maximum performance and flexibility
  • 16-bit Thumb instruction set for increased code density
  • Unified 32-bit AHB bus interface carries both instructions and data
  • Power-efficient three-stage pipeline
  • 32-bit ALU
  • 8 KByte unified cache
  • Memory Management Unit (MMU)
  • Very small die size and low power consumption
  • Fully static operation
  • Coprocessor interface
  • Extensive debug facilities:
    • EmbeddedICE-RT real-time debug unit
    • JTAG interface unit
    • Interface for direct connection to Embedded Trace Macrocell (ETM)
Revision 4 of the ARM720T processor offers several new features:
  • Portable to process geometries down to 0.13 um
  • Operation at voltages down to 0.9V
  • AHB bus interface
  • Improved manufacturing test facilities
  • Enhanced real-time debug with EmbeddedICE-RT
Benefits:
  • Available for many process technologies
  • AHB bus simplifies SoC integration process
  • ARM and Thumb instructions sets can be mixed with minimal overhead to support application requirements for speed and code density
  • Code written for ARM720T is binary-compatible with other members of the ARM7 Family and forwards compatible with ARM9, ARM9E and ARM10 families
  • Small die size reduces overall SoC area, cost and power consumption
  • Static design and lower power consumption are essential for battery-powered devices
  • Instruction set can be extended for specific requirements using coprocessors
  • EmbeddedICE-RT and optional ETM units enable extensive, real-time debug facilities