4
INTEL 80186/80286/80386
This chapter describes the internal architecture, addressing modes, instruction set, and I/O techniques associated with the 80186,80286, and 80386 microprocessors. Interfacing capabilities to typical memory and I/O chips are also included. Finally, virtual memory concepts associated with the 80286 and 80386 are covered.
4.1 Intel 80186 and 80286
This section covers the two enhanced versions of the 8086 microprocessor: Intel 80186 and 80286. The Intel 80186 includes the Intel 8086 and six separate functional units in a single chip, while the 80286 has integrated memory protection and management into the basic 8086 architecture.
4.1.1 Intel 80186
The Intel 80186 family is fabricated using HMOS technology and contains ...
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