參數(shù)資料
型號: PC8260VTPU200
廠商: Atmel Corp.
英文描述: PowerPC-based Communications Processors
中文描述: 基于PowerPC的通信處理器
文件頁數(shù): 4/53頁
文件大小: 364K
代理商: PC8260VTPU200
4
PC8260PowerQUICCII
2131B–HIREL–02/03
EC603eCore
TheEC603ecoreisderivedfromthePowerPC603emicroprocessorwithoutthefloat-
ing-pointunitandwithpowermanagementmodifications.Thecoreisahigh-
performancelow-powerimplementationofthePowerPCfamilyofreducedinstruction
setcomputer(RISC)microprocessors.TheEC603ecoreimplementsthe32-bitportion
ofthePowerPCarchitecture,whichprovides32-biteffectiveaddresses,integerdata
typesof8,16and32bits.TheEC603ecacheprovidessnoopingtoensuredatacoher-
encywithothermasters.ThishelpsensurecoherencybetweentheCPMandsystem
core.
Thecoreincludes16Kbytesofinstructioncacheand16Kbytesofdatacache.Ithasa
64-bitsplit-transactionexternaldatabuswhichisconnecteddirectlytotheexternal
PC8260pins.
TheEC603ecorehasaninternalcommonon-chip(COP)debugprocessor.Thispro-
cessorallowsaccesstointernalscanchainsfordebuggingpurposes.Itisalsousedas
aserialconnectiontothecoreforemulatorsupport.
TheEC603ecoreperformancefortheSPEC95benchmarkforintegeroperations
rangesbetween4.4and5.1at200MHz.InDhrystone2.1MIPS,theEC603eis280
MIPSat200MHz(comparedto86MIPSofthePC860at66MHz).
TheEC603ecorecanbedisabled.Inthismode,thePC8260functionsasaslave
peripheraltoanexternalcoreortoanotherPC8260devicewithitscoreenabled.
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