Instruction Format of 8085: Each Instruction Format of 8085 and Data Format of 8085 microprocessor has specific information fields. These information fields of instructions are called elements of instruction. These are : Operation code : The operation code field in the instruction specifies the operation to be performed. The operation is specified by binary code, […]
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Basic Aspects of Control System Design of Microprocessor Based Variable Speed Drives: Based on the examples of drives discussed in the foregoing, general outlines may be drawn for designing the Control System Design of variable drives using a microprocessor. It is evident that it is rather involved and time consuming to design and develop a
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Margin Angle Control of Synchronous Motors: The commutation Margin Angle Control of Synchronous Motors is defined as the angle measured from the end of commutation to the crossing of the phase voltage which was under commutation (natural firing instant). For satisfactory operation, without commutation failure, this margin angle must be greater than the turn off
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Instruction Cycle of 8085 Microprocessor: During normal operation, the microprocessor sequentially fetches, decodes and executes one instruction after another until a halt instruction (HLT) is executed. The fetching, decoding and execution of a single instruction constitutes an instruction cycle, which consists of one to five read or write operations between processor and memory or input/output
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8085 Pin Diagram | Functional Pin Diagram of 8085 Microprocessor: Fig. 1.3 (a) and (b) shows 8085 Pin Diagram and functional pin diagram of 8085 microprocessor respectively. The signals of 8085 Pin Diagram can be classified into seven groups according to their functions. Power supply and frequency signals. Data bus and address bus Control bus
8085 Microprocessor Architecture and its Operations: Fig. 1.1 shows the 8085 Microprocessor Architecture. It consists of various functional blocks as listed below : Registers Arithmetic and Logic Unit Instruction decoder and machine cycle encoder Address buffer Address/Data buffer Incrementer/Decrementer Address Latch Interrupt control Serial I/O control Timing and control circuitry. Registers: It has eight addressable
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DC Inputs: The, dc inputs modules commonly available will work with 5, 12, 24 and 48 volts. The DC Inputs modules allow us to connect either PNP (sourcing) or NPN (sinking) transistor type devices to them. If using a regular switch (i.e. a toggle or Push Button, etc.) then it is not important whether it is
What is Digital Storage Oscilloscope (DSO)?: Digital Storage Oscilloscope are available in processing and non-processing types. Processing types include built in computing power, which takes advantage of the fact that all data is already in digital form. The inclusion of interfacing and a microprocessor provides a complete system for information acquisition, analysis and output. Processing
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Classification of Printers: Classification of Printers – Character printers and graphic plotters are the two devices used to prepare a permanent (or hard copy) record of computer output. The basic difference between printers and plotters is that the former are devices whose purpose is to print letters, numbers and similar characters in text-readable form, while
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