參數(shù)資料
型號： PC8260MTPU150
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)： 24/53頁
文件大?。?/td> 364K
代理商： PC8260MTPU150
24
PC8260PowerQUICCII
2131B–HIREL–02/03
PSDVAL
60xDataValid
I/O
AssertionofthePSDVALpinindicatesthatadatabeatisvalidonthe
databus.ThedifferencebetweentheTApinandthePSDVALpinisthat
theTApinisassertedtoindicate60xdatatransferterminations,while
thePSDVALsignalisassertedwitheachdatabeatmovement.Thus,
alwayswhenTAisasserted,PSDVALwillbeasserted,but,when
PSDVALisasserted,TAisnotnecessarilyasserted.Forexample,when
adouble-doubleword(2x64bits)transferisinitiatedbytheSDMAtoa
memorydevicethathas32bitsportsize,PSDVALwillbeasserted3
timeswithoutTAand,finally,bothpinswillbeassertedtoterminatethe
transfer.
TA
TransferAcknowledge
I/O
AssertionoftheTApinindicatesthata60xdatabeatisvalidonthedata
bus.For60xsinglebeattransfers,assertionofthispinindicatesthe
terminationofthetransfer.For60xbursttransfers,thispinwillbe
assertedfourtimestoindicatethetransferoffourdatabeats,withthe
lastassertionindicatingtheterminationofthebursttransfer.
TEA
TransferError
Acknowledge
I/O
Assertionofthispinindicatesabuserror.60xmasterswithinthe
PowerQUICCIImonitorthestateofthispin.PowerQUICCII’sinternal
busmonitormayassertthispinifithasidentifieda60xtransferthatis
hung.
GBL
IRQ1
Global
I/O
Whena60xmasterwithinthechipinitiatesabustransactionitdrives
thispin.Whenanexternal60xmasterinitiatesabustransaction,it
shoulddrivethispin.Assertionofthispinindicatesthatthetransferis
globalanditshouldbesnoopedbycachesinthesystem.The
PowerQUICCIIdatacachemonitorsthestateofthispin.
InterruptRequest1
I
Thisinputisoneoftheeightexternallinesthatcanrequest(bymeansof
theinternalinterruptcontroller)aserviceroutinefromthecore.
CI
BADDR29
IRQ2
CacheInhibit
O
Thispinisanoutputpin.ItisusedforL2cachecontrol.Foreach
BADDR29PowerQUICCII60xtransactioninitiatedinthecore,thestate
ofthispinindicatesifthistransactionshouldbecachedornot.Assertion
oftheCIpinindicatesthatthetransactionshouldnotbecached.
BurstAddress29
O
Therearefiveburstaddressoutputpins.Thesepinsareoutputsofthe
60xmemorycontroller.Thesepinsareusedinexternalmaster
configurationandareconnecteddirectlytomemorydevicescontrolled
byPowerQUICCIImemorycontroller.
InterruptRequest2
I
Thisinputisoneoftheeightexternallinesthatcanrequest(bymeansof
theinternalinterruptcontroller)aserviceroutinefromthecore.
WT
BADDR30
IRQ3
WriteThrough
O
OutputusedforL2cachecontrol.ForeachcoreinitiatedPowerQUICCII
60xtransaction,thestateofthispinindicatesifthetransactionshouldbe
cachedusingwrite-throughorcopy-backmode.AssertionofWT
indicatesthatthetransactionshouldbecachedusingthewrite-through
mode.
BurstAddress30
O
Therearefiveburstaddressoutputpins.Thesepinsareoutputsofthe
60xmemorycontroller.Thesepinsareusedinexternalmaster
configurationandareconnecteddirectlytomemorydevicescontrolled
byPowerQUICCII’smemorycontroller.
InterruptRequest3
I
Thisinputisoneoftheeightexternallinesthatcanrequest(bymeansof
theinternalinterruptcontroller)aserviceroutinefromthecore.
Table4.
ExternalSignals(Continued)
Pin
SignalName
Type
Description
相關(guān)PDF資料
PDF描述
PC8260 PowerPC-based Communications Processors
PC8260VTPU150 PowerPC-based Communications Processors
PC8260VTPU200 PowerPC-based Communications Processors
PC8260MTPU200 PowerPC-based Communications Processors
PC837AC NPN-OUTPUT DC-INPUT OPTOCOUPLER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PC8260MTPU200 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:PowerPC-based Communications Processors
PC8260VTPU150 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:PowerPC-based Communications Processors
PC8260VTPU200 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:PowerPC-based Communications Processors
PC8265A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PC8265A [Updated 9/03. 59 Pages]
PC8265AMTPUMHBC 制造商:e2v technologies 功能描述:BASED COMMUNICATIONS PROCESSOR 480TBGA - Trays
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*