implementing single- and double-precision operations
achieves 500mflops
– Extremely large on-chip primary cache
– On-chip secondary cache controller
◆
MIPS-IV 64-bit ISA for improved computation
– Compound floating-point operations for 3D graphics and
floating-point DSP
– Conditional move operations
◆
Large on-chip TLB
◆
Active power management, including use of WAIT operation
◆
Large, efficient on-chip caches
– 32KB Instruction Cache, 32KB Data Cache
– 2-set associative in each cach
– Virtually indexed and physically tagged to minimize cache
flushes
– Write-back and write-through selectable on a per page basis
– Critical word first cache miss processing
– Supports back-to-back loads and stores in any combination at
full pipeline rate
◆
High-performance memory system
– Large primary caches integrated on-chip
– Secondary cache control interface on-chip
– High-frequency 64-bit bus interface runs up to 125MHz
– Aggregate bandwidth of on-chip caches, system interface of
5.6GB/s
– High-performance write protocols for graphics and data
communications
◆
Compatible with a variety of operating systems
– Windows™ CE
– Numerous MIPS-compatible real-time operating systems
◆
Uses input system clock, with processor pipeline clock
multiplied by a factor of 2-8
◆
Industrial and commercial temperature range
◆
Block Diagram
Phase Lock Loop
Data Set A
Store Buffer
SysAD
Write Buffer
Read Buffer
Data Set B
DBus
Control
Floating Point Register File
Unpacker/Packer
Floating-point Control
FPIBus
Tag
AuxTag
Load Aligner
Joint TLB
Coprocessor 0
System/Memory
Control
DVA
Integer Control
Integer Register File
Integer/Address Adder
Data TLB Virtual
Shifter/Store Aligner
Logic Unit
ABus
Integer Multiply, Divide
Address Buffer
Instruction Tag A
ITLB Physical
Instruction Tag B
Instruction Set B
IntIBus
Data Tag A
DTLB Physical
Instruction Select
Integer Instruction Register
FP Instruction Register
Instruction Set A
Floating Point
MAdd,Add,Sub, Cvt
Div, SqRt
IVA
PC Incrementer
Branch Adder
Instruction TLB Virtual
Program Counter
The IDT logo is a trademark and RC32134, RC32364, RC64145, RC64474, RC64475, RC4650, RC4640, RC4600,RC4700 RC3081, RC3052, RC3051, RC3041, RISController, and RISCore are trademarks of Inte-
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【
Abstract
】
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Introduction
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1 Introduction
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Chapter 1 Proposal
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Demand Analysis
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Embedded System
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