Real address mode - PowerPoint PPT Presentation

The Intel 80x86

The Intel 80x86. Thorne : Section 1.4-1.6, 2.2.4, Section 3.4 (Irvine, Edition IV : Section 2.2). Getting to Know a Microprocessor. Any processor is characterized by its : Register Set General purpose, addressing, control/status registers Instruction set Includes addressing modes

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Intel 80286

Intel 80286. Features of 80286. 24-bit address bus. Able to address 16MB of physical memory. 1GB of virtual memory. It has a MMU[memory management unit] It operates in 2 modes Real address mode Protected virtual address mode. BLOCK DIAGRAM OF 80286. 1)Address unit 2)Bus unit

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