标签: 并行从端口

PIC16C64/74microcontrollersfromMicrochipTechnol-ogyInc.canbeinterfacedwitheaseintoamulti-microprocessorenvironmentusingitsbuilt-inPar-allelSlavePort(PSP).Withtheirveryhighoperatingspeeds(cycletimesaslowas200nswithaclockrateof20MHz),andanarrayofon-chipperipherals,thesemicrocontrollersmakeidealsmartinterfacestotherealworld.MUsingthe8-BitParallelSlavePortAN579Theportpinsareconnectedtotwo8-bitlatches,oneforAuthor:ScottFinkdataoutput(fromthePIC16CXXX)andonefordataMicrochipTechnologyInc.input.ThePIC16CXXXsendsdatabywritingtotheoutputlatch,andreceivesdatabyreadingtheinputINTRODUCTIONlatch(notethattheinputandoutputlatchesareatthe……