有关的串行EEPROM问题和答案

InterfacingaserialEEPROMtoacontrollercanbea

confusingtask,especiallyforfirsttimeusers.Because

communicationwithaparallelmemorydeviceismore

straightforward,theadvantagesofserialdevicesare

sometimesoverlookedbecauseofthetimerequiredto

learnadifferentprotocol.Inordertominimizethistime,

Microchipprovidesmanyapplicationnotesonhowto

interfaceacontrollertoourserialmemoryproducts.

Sinceeveryapplicationisdifferent,questionsondiffer-entaspectsofserialmemoriesstillarise.Thisapplica-tionnoteprovidesanswerstosomeofthesecommonly

askedquestionsonusingserialEEPROMs.Thisseries

ofquestionsandanswerscoversabroadrangeoftopics

concerningboth2-wireand3-wireserialEEPROMS,

andcoversmaterialand/orcircumstancesthatmaynot

beprovidedinthedatabook.QuestionsandAnswersConcerningSerialEEPROMsAN572QuestionsandAnswersConcerningSerialEEPROMsInterfacingaserialEEPROMtoacontrollercanbeaQ:I’musinganinterruptroutineinmycontrollercodeconfusingtask,especiallyforfirsttimeusers.BecausethatmayleavetheserialEEPROMinthemiddleofcommunicationwithaparallelmemorydeviceismoreareadcommand.WhenIreturnfromtheinterrupt,straightforward,theadvantagesofserialdevicesareisthereanywaytoresettheparttomakesureitissometimesoverlookedbecauseofthetimerequiredtoinaknownstate