Unit I Architecture Of 8085 Microprocessor Pdf Central Processing The document provides an overview of the 8085 microprocessor, detailing its architecture, functional units, and key components such as the arithmetic and logic unit (alu), flag register, and various registers including the accumulator and program counter. Intel 8085 microprocessor: it is an 8 bit microprocessor designed by intel in 1977 using nmos technology. the configuration of 8085 is−8 bit data bus 16 bit address bus, which can address up to 64kb of memory. a 16 bit program counter (pc) and a 16 bit stack pointer (sp).
The 8085 Microprocessor Architecture Pdf Central Processing Unit One or more microprocessors typically serve as a central processing unit (cpu) in a computer system or handheld device. microprocessors made possible the advent of the microcomputer. at the heart of all personal computers and most working stations sits a microprocessor. The paper discusses the intel 8085 microprocessor architecture, highlighting its components, functionality, and operational principles. it outlines the basic structure of the microprocessor, including registers, the arithmetic logic unit (alu), control unit, and memory interfacing. The 8085a (commonly known as the 8085) is an 8 bit general purpose microprocessor capable of addressing 64k of memory. the device has forty pins, requires a 5 v single power supply, and can operate with a 3 mhz single phase clock. the 8085a 2 version can operate at the maximum frequency of 5 mhz. In the 8085, "byte" and "word" are synonymous because it is an 8 bit microprocessor. however, instructions are commonly referred to in terms of bytes rather than words.
Chapter 2 8085 Microprocessor Architecture Pdf Central Processing The 8085a (commonly known as the 8085) is an 8 bit general purpose microprocessor capable of addressing 64k of memory. the device has forty pins, requires a 5 v single power supply, and can operate with a 3 mhz single phase clock. the 8085a 2 version can operate at the maximum frequency of 5 mhz. In the 8085, "byte" and "word" are synonymous because it is an 8 bit microprocessor. however, instructions are commonly referred to in terms of bytes rather than words. The internal architecture of 8085 includes the alu, timing and control unit, instruction register and decoder, register array, interrupt control and serial i o control. Fig.2.1 shows internal architecture of 8085 μp. it includes accumulator, alu, control unit, instruction register, instruction decoder & encoder, timing & control unit, serial i o control, interrupt control unit etc. Intel 8085 microprocessor, address bus was of 16 bits. this means that microprocessor 8085 can transfer maximum 16 bit address which means it can address 65,536 different memory. Internal architecture of 8 bit microprocessor and its registers: the intel 8085 a is a complete 8 bit parallel central processing unit. the main components of 8085a are array of registers, the arithmetic logic unit, the encoder decoder, and timing and control circuits linked by an internal data bus. the block diagram is shown below:.