High School Physics
In this post, we have posted 15 MCQs on 8051 Microcontroller architecture. We have distributed these questions among 3 pages (links at the bottom of each page in this series). We have also posted the correct answers at the end of this series (page 4). So it’s time to target the MCQs to test your […]
In this post, we will discuss the Arithmetic Instructions in the 8085 Microprocessor required for arithmetic operations. Arithmetic operations supported by the 8085 Microprocessor are addition, subtraction, and their variants. The arithmetic instructions in the 8085 microprocessor are described here in detail. Addition (ADD, ADI) With the Addition instruction, the following 3 operations can be […]
In this post, we will write down programs in assembly language for the 8085 microprocessor to complement a number (1’s complement and 2’s complement). Here are the problem statements and the required programs, input data, and results. 1’s complement – problem statement for the 8085 microprocessor Problem statement: Write down an assembly language program to […]
In this post, we will discuss different addressing modes in the 8085 microprocessor with examples. Addressing modes in instructions Each instruction indicates an operation to be performed on certain data. The process of specifying the data to be operated on (operand) by the instruction is known as ‘addressing’. The various formats for specifying operands are […]
In this post, we will discuss the Instruction set and Types of instruction in the 8085 microprocessor through a set of questions and answers. What is an instruction? An instruction is a bit pattern that is decoded inside a microprocessor to perform a specific task or function on a given data. What is meant by […]
In this post, we will see how Demultiplexing of multiplexed address and data bus AD7-AD0 in 8085 is done. The 8085 uses a multiplexed data bus and address bus. This means the Lower address bus (A7 – A0) and the data bus (D7 – D0) are available on the same pins AD7 – AD0. Multiplexing […]
In this post, we will discuss Instruction Cycle and Machine Cycle in the 8085 Microprocessor. In this process, we will go through questions and answers related to the Fetch Cycle, Instruction Cycle, Machine Cycle & T-state of 8085. We know that the microprocessor is called a sequential machine because it performs the jobs in a […]
In this post, we will draw the Instruction Word flow diagram and Data Word flow diagram for general-purpose microprocessors like Intel 8085 and 8086 and then explain the sequence of operations related to these diagrams. Draw the block schematic of a typical Instruction Word flow diagram and explain the same The Instruction Word flow diagram […]
This assignment (MCQs on AVR microcontroller, 8255, 8051 – NPTEL assignment) contains 14 MCQs spanned across 3 pages. Links to other pages of this assignment are available at the bottom of each page of this series. AVR microcontroller, 8255, 8051 – MCQs 1 ) Which of the following representations related to the AVR microcontrollers is […]
This assignment (MCQs on 8086 microprocessor – NPTEL assignment) contains 15 MCQs spanned across 3 pages. Links to other pages of this assignment are available at the bottom of each page of this series. 8086 microprocessor based MCQs 1 ) Which of the following statement(s) is/are correct? a) If MN/MX’ is low, 8086 cannot be […]
The 8085 is an 8-bit processor since its data length and data bus width are 8-bits. It has an addressing capability of 16 bits, that is, it can address 216=64 KB of memory. The 8085 processor is generally available as a 40-pin IC package and uses+5V for power. It can run at a maximum frequency […]
In this post, we will study the Pin functions of the 8085 microprocessor. In this study, different signals in 8085 & their significance will be discussed as well. Timing and control circuitry of 8085 microprocessor The timing and control unit section is a part of the CPU and generates timing and control signals for the […]
In this post, we will study the Special-purpose registers in the 8085 microprocessor with the help of a bunch of Frequently Asked Questions. Describe the special-purpose registers in 8085 Special-purpose Registers are dedicated to a specific function. The accumulator, flag register, program counter (PC), and stack pointer (SP) constitute the special purpose registers in the […]
This post covers a set of FAQs on general-purpose registers of 8085 microprocessor. Describe the general-purpose registers of 8085 microprocessor We know that the registers are all storage areas inside the microprocessor and are used for different purposes. General-purpose Registers are used to store only the data that is being used by the program under […]
The 8085 is an 8-bit processor since its data length and data bus width are 8-bits. It has an addressing capability of 16 bits, that is, it can address 216=64 KB of memory. The 8085 processor is generally available as a 40-pin IC package and uses+5V for power. It can run at a maximum frequency […]
In this post, we have discussed the interfacing of a 1 KB RAM chip with the 8085 microprocessor. We have also discussed the Memory mapping of the RAM chip. Steps followed by the 8085 microprocessor to read the content of a memory location in the RAM chip are also discussed. We know that the programs […]
Executing the program and checking results in the 8085 Microprocessor – In this post, we have discussed how the 8085 microprocessor executes one program and how to check results in 8085. This will also help to understand how a microprocessor works. Executing the program and checking result in 8085 Microprocessor A microprocessor is a sequential […]
In this post, we present 15 MCQs with answers on the 8085 Instruction set, addressing modes, and Machine cycles. (These questions are NPTEL assignment questions on 8085). We have distributed these questions among 3 back-to-back pages, and you can move among these pages freely using the next buttons given at the end of each of […]
To understand the difference between microprocessor and microcontroller we need to understand what microcomputer system and microcontroller (i.e. single-chip microcomputer system) are. To make a complete microcomputer system, only a microprocessor is not sufficient. It is necessary to add other peripherals such as read-only memory(ROM), read/write memory(RAM), decoders, drivers, number of input/output devices to make […]
In this post, we will discuss the 8255 PPI Programmable Peripheral Interface and find answers to a bunch of interesting questions on this. What is 8255 PPI? 8255 programmable peripheral interface (PPI) is a popularly used parallel, programmable input-output device. It can be used to transfer data between external devices (such as input and output devices) […]
In this post, you will get 15 Multiple Choice Questions (MCQs) on 8085 Microprocessor Architecture. And you get the solution as well. For better readability, these questions are distributed among 3 pages. Links to other pages in these series are available at the bottom of the pages. Also read this Related Post on microprocessor MCQ: […]
Let’s see how to find the smallest number in an array of data using the 8085 instruction set. Algorithm to Find the smallest number in an array of data using 8085 microprocessor 1) Load the address of the first element of the array in HL pair2) Move the count to B – reg.3) Increment the […]
Let’s see how to find the largest number in an array of data using the 8085 instruction set. Algorithm to Find the largest number in an array of data using 8085 microprocessor 1) Load the address of the first element of the array in HL pair2) Move the count to B – reg.3) Increment the […]
In this post, you will find the required algorithm, & 8085 program code to perform the Division of two 8 bit numbers using the 8085 microprocessor. Also, you will get the observation and result. Algorithm for Division of Two 8 bit Numbers using 8085 1) Start the program by loading HL register pair with the […]
Multiplication of Two 8 bit Numbers using 8085 microprocessor
In this post, you will find the required algorithm, & 8085 program code To perform the Subtraction of two 8 bit numbers using the 8085 microprocessor. Also, you will get the observation and result. Algorithm for Subtraction of Two 8 bit Numbers using 8085 Start the program by loading the first data into Accumulator. Move […]
In this post, you will find the required algorithm, & 8085 program code To perform the addition of two 8 bit numbers using the 8085 microprocessor. Also, you will get the observation and result. Algorithm for Addition of Two 8 bit Numbers using 8085 1) Start the program by loading the first data into Accumulator.2) […]
You can read the content of this class notes ( 8255 Programmable Peripheral Interface IC – pdf download ) as an embedded pdf. Also, you can download this pdf file from the given link. This pdf is only for educational and study purposes. 8255 Programmable Peripheral Interface (PPI) – PDF notes It may take a […]
You can read the content of this class notes as an embedded pdf. Also, you can download it from the given link. 8086 Instruction Set & Assembly Programming – read here Download pdf notes – 8086 Instruction Set & Assembly Language Programming Go to Microprocessor Home Page
In this PDF you will get the signal and function details of 40 pins of the 8086 microprocessor. This PDF tutorial also contains detailed information on 8086 addressing modes.
Before we start our lessons in 8086 microprocessor architecture, let’s quickly talk about what is new in it. In case of 8085 microprocessor, the processor first fetches the instruction byte from memory. Then the instruction decoder decodes it. Finally, the microprocessor performs a particular task according to the instruction. So the sequence of operation is as […]
Similar to the first-class notes page, here also you will be able to read the content of this class notes as an embedded pdf. Also, you can download it from the given link. 8085 different methods of Data Transfer – read online download pdf notes – 8085 data transfer methods Go to Microprocessor Home Page
Here in this page, you will be able to read the content of this class notes as an embedded pdf. Also, you can download it from the given link. 8085 Interrupts – read online Download pdf notes – 8085 Interrupts Go back to Microprocessor class notes Home Page
