The 8080 processor was updated with enabledisable instruction pins and interrupt pins to form the 8085 microprocessor. Features of 8085 intel 8085 is an 8bit, nmos microprocessor. The 8085 is an 8bit general purpose microprocessor that can address 64k byte of memory. Introduction fundamentals of microprocessor 8085 and. This was introduced by the intel company in the year 1977 to 1990.
The time for the back cycle of the intel 8085 a2 is 200 ns. Intel 8086 microprocessor architecture, features, and signals. Salient features of the 8085 microprocessor manufactured by intel. Understanding and learning a timing diagram is much better than memorising one. Introduction to 8085 microprocessor linkedin slideshare. What is meant by the statement that 8085 is a 8bit microprocessor.
Lecture note on microprocessor and microcontroller theory and. Intel 8085 intel 8085 pin configuration signals and io pins 4 intel 8085 cpu block diagram the 8085 and its buses. It was compatible with intel 8080 but needed less support of the hardware. It is the number of bits processed in a single instruction. It is an 8 bit general purpose microprocessor that can easily store 64k bite of memory. What is memory interfacing of 8085 microprocessor answers.
Microprocessor architecture, programming and applications with 8085 by rs gaonkar 2. The 5 in the model was added as it requires plus 5 voltages. This page on 8086 vs 80286 vs 80386 vs 80486 describes difference between 8086, 80286, 80386 and 80486. What are stacks subroutines in 8085 microprocessor answers. Comprehensive study of microprocessor by naresh grover 4.
The reason for the difference is that some actually most instructions have multiple different formats. The architecture of a microprocessor is to be learnt in terms of registers, memory. The entire group of instructions that a microprocessor supports is called instruction set. The intel 8085 eightyeightyfive is an 8bit microprocessor produced by intel and introduced in march 1976. It has 40 pins ic integrated circuit fabricated on single chip. Data memory the processor always uses 16bit addresses so that data can be. The microprocessor reads one instruction at a time, matches it with its instruction set, and performs the data manipulation specified. It determines the number of operations per second the processor can perform. Microprocessor architecture the microprocessor can be programmed to perform functions on given data by writing specific instructions into its memory.
The 8086 microprocessor was an enhanced version of the 8085. It has 16bit address bus and hence can address up to 26165535 bytes 64kb memory location through a0a15. You can visit similar threads as well for more free pdf and get yourself updated. A microprocessor communicates and operates in the binary 0s and 1s, called bits.
Logarithmic quantization combined with a faster microprocessor an 8085 ah2 running at 10 mhz and more efficient software should reduce this to 2. Let us discuss the architecture of 8085 microprocessor in. Each microprocessor has a fixed set of instructions in the. Features of 8085 8085 microprocessor course z series innovations. Draw the pin configuration and functional pin diagram of p 8085. It provides serial interfacing with serial input data sid and serial output. Kunj desai 140950107022 harsh bajaj 140950107008 khusboo jethwa 140950107028 branch. The 8085 machine language the 8085 from intel is an 8bit microprocessor. Microprocessor 8085 notes free download as word doc. It is a softwarebinary compatible with the morefamous intel 8080 with only two minor instructions added to support its added interrupt and serial inputoutput features.
The address and data bus are multiplexed in this processor which helps in providing more control signals. It is a 40 pin c package fabricated on a single lsi chip. Before knowing about the 8085 architecture in detail, lets us briefly discuss about the basic features of 8085 processor 8085 microprocessor is an 8bit microprocessor with a 40 pin dual in line package. It is a device or rather say a integrated chip which process some instructions given to it in microseconds. With the help of 16bit address, 8085 can access 216 65536 64k memory locations. Refer 8085 vs 8086 for comparison between the two 8086 microprocessor. It is a 8 bit microprocessor, introduce by intel in 1976. It is the set of instructions that the microprocessor can understand. Lecture note on microprocessor and microcontroller theory. A microprocessor which has n data lines is called an nbit microprocessor i. Introduction to 8085 microprocessor microprocessor is a electronic chip, that functions as the central processing unit of a computer.
Intel 8085 8bit microprocessor shrimati indira gandhi. Intel 8085 8bit microprocessor intel 8085 is an 8bit, nmos microprocessor. The 5 means it is a single power supply 5 volt version of the 8080, with enhancements. Arithmetic instructions of 8085 instruction set of 8085 microprocessor microprocessor duration. Apr 05, 2017 introduction to 8085 microprocessor names. The 8085 in the 8085 microprocessor is the designation given to the microprocessor by intel. See,first of all,read and understand the different types of machine cycles in 8085 microprocessor. Project using 8085 pdf a simple interfacing project with the 8085microprocessor probability distribution formula pdf kits available in.
If the operand is a memory location, its location is specified by the contents of the hl registers. The microprocessor is one of most known subject is computer engineering branch. Mvi b, 3eh move the data 3eh given in the instruction to b register. What is the technology used in the manufacture of 8085. The pin configuration and functional pin diagram of. This is a 3byte instruction, the second byte specifies the loworder address and the third byte specifies the highorder address. Tutorial on introduction to 8085 architecture and programming. However, it requires less support circuitry, allowing simpler and less expensive microcomputer systems to be built. The 8085 uses a total of 246 bit patterns to form its instruction set. Tybsc electronic instrumentation ii mumbai university. This microprocessor is an update of 8080 microprocessor. Microcontrollers have gone through a silent evolution invisible.
The ebook has complete chapters on microprocessor and it is. Each instruction is represented by an 8bit binary value. It is an 8 bit microprocessor each character is represented by 8 bits or a byte. Lecture note on microprocessor and microcontroller theory vssut. Its data bus width is 8bit and address bus width is 16bit, thus it can address 216 64 kb of memory. Hello friends,lots of reader would like to read the content for microprocessor short question and answer in the offline mode as well,here is the pdf file which contains lots of microprocessor short question and answer pdf for offline study you can download pdf file from below link microprocessor shortquestionandanswer pdf.
Microprocessor 8085 simulator software kit free download. Oct, 2012 microprocessor architecture the microprocessor can be programmed to perform functions on given data by writing specific instructions into its memory. Implementation of traffic light control system using microprocessor 8085. Dec 16, 2019 sign in to like videos, comment, and subscribe. To find the smallest number in an array of data using 8085 instruction set. It is an nmos device having around 6200 transistors contained in a 40 pin dip package. It operates on 8bit data and uses 16bit address to access the memory. To transfer the data inside the chip from one place to another it has bus system just like our buses to. As discussed earlier, 8085 microprocessor was introduced by intel in the year 1976. Introduction to microprocessor by adithya p mathur, tata mcgraw hill publishers, new delhi 5. Pdf an introduction to microprocessor 8085 researchgate. It is manufactured with nmos ntype metal oxide semiconductor technology implemented with 6200 transistors. Microprocessor short question and answer pdf examradar. V cc hold hlda clkout reset in ready iom s 1 rd ale s 0 a 15 a 14 a a 12 a 11 a 10 a 9 a 8 wr x 1 x 2 reset out sod sid trap rst 7.
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