Microprocessors and Microcomputers
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On: 08 Nop, 2017
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The implementation of logic in integrated circuits in the decade of the sixties and part of seventies relied on providing building blocks that integrated unique logic functions. The major breakthrough in logic implementation on-chip was the development of microprocessor and microcomputers. The logical operations in these machines is controlled by a stored program. A simplified block diagram of a microcomputer is shown in Fig. 30. It consist of three functional blocks; the input-output section , the central processor unit (CPU), and the main memory, A microprocessor integrates the CPU function and part of the I/O section only, whereas a microcomputer integrates all three blocks shown in Fig. 30.
I/O Section - The lines at the left of the I/O section shown in Fig. 30 connect the microcomputer to the input and output devices, also known as peripheral devices. A simplified block diagram of an I/O section is shown in Fig. 31. Selection of the I/O devices is performed by input and output multiplexers (MPX or MUX), also known as data selectors. Output information is stored in the putput buffers. The I/O register provides temporary storage during the transmission od information between the CPU and I/O section.Download microprocessors and microcomputers in [getwiringdiagram.com] which provided circuit and wiring diagram for automotive, car, motorcycle, truck, audio, radio, electronic devices, home and house appliances.
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