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中山大学软件学院专业课计算机组成原理课件第10章.ppt

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Chapter9andChapter118088,80286MicroprocessorsandISABusI/OandThe8255;ISABusInterfacingMainContentsStatethefunctionofI/OportsReadandwritedatatoandfromI/OportsDesignofperipheralI/Ousingthe74LS373outputlatchandthe74LS244inputbufferI/Oaddressmapof80x86PCsThepurposeofthe8255chipCodeAssemblylanguageinstructionstoperformI/Othroughthe8255Sec.9.18088MicroprocessorSec.9.18088MicroprocessorSec.9.18088MicroprocessorSec.9.18088MicroprocessorSec.9.18088MicroprocessorSec.9.18088MicroprocessorSec.9.18088MicroprocessorSec.9.18088MicroprocessorSec.9.18088MicroprocessorSec.9.18088MicroprocessorSec.9.18088MicroprocessorSec.9.18088MicroprocessorSec.9.18088MicroprocessorSec.9.18088MicroprocessorSec.9.18088MicroprocessorSec.9.18088MicroprocessorSec.9.18088MicroprocessorSec.11.18088Input/OutputinstructionsSec.11.18088Input/OutputinstructionsSec.11.18088Input/OutputinstructionsSec.11.18088Input/OutputinstructionsSec.11.18088Input/OutputinstructionsSec.11.2I/OAddressdecodinganddesignSec.11.2I/OAddressdecodinganddesignSec.11.2I/OAddressdecodinganddesignSec.11.2I/OAddressdecodinganddesignSec.11.2I/OAddressdecodinganddesignSec.11.2I/OAddressdecodinganddesignSec.11.2I/OAddressdecodinganddesignSec.11.2I/OAddressdecodinganddesignSec.11.2I/OAddressdecodinganddesignSec.11.2I/OAddressdecodinganddesignSec.11.3I/OAddressmapofX86PCsSec.11.3I/OAddressmapofX86PCsSec.11.3I/OAddressmapofX86PCsSec.11.3I/OAddressmapofX86PCsSec.11.3I/OAddressmapofX86PCsSec.11.3I/OAddressmapofX86PCsSec.11.3I/OAddressmapofX86PCsSec.11.3I/OAddressmapofX86PCsSec.11.3I/OAddressmapofX86PCsSec.11.3I/OAddressmapofX86PCsSec.11.48255PPIchipSec.11.48255PPIchipSec.11.48255PPIchipSec.11.48255PPIchipSec.11.48255PPIchipSec.11.48255PPIchipSec.11.48255PPIchipSec.11.48255PPIchipSec.11.48255PPIchipSec.11.48255PPIchipSec.11.48255PPIchipSec.11.48255PPIchipSec.11.48255PPIchipSec.11.48255PPIchipSec.11.48255PPIchipSec.11.48255PPIchipSec.11.48255PPIchipSec.11.48255PPIchipSec.11.48255PPIchip8288(BusController),8253Timer11.17,11.23,11.49