Operating Modes of 8257

Operating Modes of 8257

Operating Modes of 8257: The Operating Modes of 8257 can be programmed to operate in following modes : Rotating Priority Mode : In rotating priority mode, the priority of the…

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8257 Pin Diagram

8257 Pin Diagram

8257 Pin Diagram: Fig. 14.61 shows 8257 Pin Diagram. Data Bus (D0-D7) : These are bi-directional tri-state signals connected to the system data bus. When CPU is having control of…

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Motorola 68000 Instruction Set

Motorola 68000 Instruction Set

Motorola 68000 Instruction Set: There are actually 56 basic instructions provided in the Motorola 68000 Instruction Set. With 14 addressing modes, 56 instructions, and 5 data types, the 68000 includes…

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Assembly Language Programming Articles

Assembly Language Programming Articles: Program Development and Execution: The steps involved in Program Development and Execution of assembly language programs. Fig. 8.1 shows these steps. The left side of the…

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Macros in Microprocessor

Macros in Microprocessor: Macro is a group of instructions. The Macros in Microprocessor assembler generates the code in the program each time where the macro is 'called'. Macros can be…

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Mechanical Design of Overhead Lines Articles

Mechanical Design of Overhead Lines Articles: Introduction to Overhead Line: Electric power can be transmitted or distributed either by means of underground  cables or by overhead line. The underground cables…

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