36249 Slajd16 (168)

MCF5407- WŁASNOŚCI

♦ ColdFire processor core

—Variable-lengtli RISC, clock-multipliedVersion 4 microprocessor core

—    Implementatioii of Revision B oftlie ColdFire instructionsetarcliitecture(ISA), wliicli leveragestlie 68Kprogramming model

—    Two independent decoupled pipelines: four-stage instruction fetcli pipeline (IFP) andfive-stage operand execution pipeline (OEP)

—    Ten-instruction FIFObuffer provides decouplingbetween tlie pipelines*

—    Limited superscalar design acliieves performance levels close to dual-issue performance

—    Programmable two-level brancli acceleration meclianism witli an 8-elitry brancli ca che plus a 128-e litry predictiontable for increased pei*formance

—    32-bit i lite r 11 a 1 address bus supporting4 Gbytes of linear address space

—    32-bit data bus

—16 user-accessible, 32-bit-wide, general-purpose registers

—    Supervisor/user modes for system protection

—Vectorbase register to relocate exception-vectortable

—    Optimized for liigli-level language constructs