1
特性
•
PC603e
™
microprocessor(embeddedpowerpc
™
core)at100-200MHz
– 140mipsat100mhz(dhrystone2.1)
– 280mipsat200mhz(dhrystone2.1)
– 高-效能,superscalarmicroprocessor
– DisableCPUMode
– improvedlow-powercore
– 16-kbytedataand16-kbyteinstructioncache,four-waysetassociative
– MemoryManagementUnit
– NoFloatingPointUnit
– commonon-chipprocessor(cop)
•
systemintegrationunit(siu)
– memorycontroller,includingtwodedicatedsdrammachines
– pciupto66mhz(availableinsubsequentversions)
– HardwareBusMonitorandSoftwareWatchdogTimer
– ieee1149.1jtagtestaccessport
•
高-performancecommunicationsprocessormodule(cpm)withoperating
Frequencyupto166MHz
– PowerPCandCPMMayRunatDifferentFrequencies
– SupportsSerialBitRatesupto710Mbpsat133MHz
– paralleli/oregisters
– 在-board24kbytesofdual-portram
– twomulti-channelcontrollers(mccs)eachsupporting128full-duplex,64-kbps,
HDLCLines
– VirtualDMAFunctionality
•
twobusarchitectures:one64-bitpowerpcandone32-bitlocalbus(orpcion
pc8265)
•
twoutopialevel-2master/slaveports,bothwithmulti-physupport.onecan
support8/16bitdata
•
ThreeMILInterfaces
•
EightTDMInterfaces(t1/e1),twotdmPortsCanBeGluelesstoT3/e3
•
powerconsumption:2.5wat133mhz
描述
ThePC8260PowerQUICCII
™
isaversatilecommunicationsprocessorthatinte-
gratesononechip,ahigh-performancepowerpc(pc603e)riscmicroprocessor,a
highlyflexiblesystemintegrationunit,andmanycommunicationsperipheralcontrol-
lersthatcanbeusedinavarietyofapplications,particularlyincommunicationsand
networkingsystems.
thecoreisanembeddedvariantofthepc603emicroprocessor,specificallyreferred
tolaterinthisdocumentastheec603e,with16kbytesofinstructioncacheand16
kbytesofdatacacheandnofloating-pointunit(fpu).thesysteminterfaceunit(siu)
consistsofaflexiblememorycontrollerthatinterfacestoalmostanyuser-定义
memorysystem,a60x-至-pcibusbridge(availableinfuturerevisions)andmany
otherperipherals,makingthisdeviceacompletesystemonachip.
thecommunicationsprocessormodule(cpm)includesalltheperipheralsfoundin
thepc860,withtheadditionofthreehigh-performancecommunicationchannelsthat
supportnewemergingprotocols(forexample,155-mbpsatmandfastethernet).
equippedwithdedicatedhardware,thepc8260canhandleupto256full-duplex,
时间-分隔,multiplexedlogicalchannels.
powerpc-based
Communications
Processors
PC8260
PowerQUICCII
™
rev.2131b–hirel–02/03