Microprocessors 14 8085 is pronounced as 'eighty-eighty-five' microprocessor. It is an 8-bit microprocessor designed by Intel in 1977 using NMOS technology. It has the following configuration: 8-bit data bus 16-bit address bus, which can address upto 64KB A.
8085 Microprocessor - Ramesh Gaonkar.pdf (8085 Microprocessor Ramesh Gaonkar pdf download) in this ebook you will learn about microprocessor architecture programming and applications by ramesh gaonkar pdf About the subject Microprocessor:
The microprocessor is one of most known subject is computer engineering branch. The ebook has complete chapters on microprocessor and it is usually included from the fifth semester on the engineering. The paper deal with the fundamentals of Digital logic Design and Computer Organization.
In this pdf 8085 microprocessor you will find complete topics and chapter which covers your syllabus of the subject Microprocessor. Its free pdf download and the attachment is located at the bottom of the post, you can click the attachment to download will automatically start. About the Author: (8085 Microprocessor - Ramesh Gaonkar)
Ramesh Gaonkar has reputed experience in teaching as well as an Engineers, he has worked as Profession in various universities across the globe and also have experience as Design Engineer. He has completed MS from Union College, Schenectady, New York, 1966 and done his Ph.D from Ph.D.:Syracuse University, Syracuse, New York, 1975. Procedure to Download the attachment: (microprocessor architecture programming and applications with the 8085 by rameshgaonkar pdf)
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Some of the main topic of the book include the following topics: 1. Basic Concepts of Microprocessors. 2. A Microprocessor-based system. 3. Memory Map and Addresses 4. Machine Language 5. The 8085 Machine Language 6. Assembly Language 7. 8085 Microprocessor Architecture 8. Architecture of Intel 8085 Microprocessor 9. The ALU 10. The Internal Architecture 11. Non Programmable Registers 12. The Address and Data Busses 13. Demultiplexing AD7-AD0 14. The LXI instruction 15. Indirect Addressing Mode 16. Arithmetic Operations 17. Arithmetic Operations Related to Memory 18. Manipulating Addresses 19. Logic Operations 20. Additional Logic Operations 21. RLC vs. RLA 22. Logical Operations 23. Branch Operations 24. Unconditional Branch 25. Machine Control 26. Operand Types 27. Instruction with Immediate Date 28. Addressing Modes
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29. Data Formats 30. Counters & Time Delays 31. Using a Register Pair as a Loop Counter 32. Nested Loops for Delay 33. The 8085 Non-Vectored Interrupt Process 34. Using RIM and SIM to set Individual Masks 35. Mode 0 ( Simple Input or Output ) 36. MAX and MIN Modes For more engineering ebooks download: Click Here:
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8085 microprocessor PPT and PDF Report: Central Processing Unit (CPU) is carved on a single chip is called a microprocessor. The functional components of a CPU are Arithmetic Logic Unit (ALU), Control and Timing Units, registers are found in a single integrated circuit called IC. The INTEL 8085 microprocessor is a second generation microprocessor and is an eight-bit processor designed in the year of 1976 with the NMOS technology with a 40 pin DIP, approximately consisting 6500 transistors having a power supply of 5V.
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8085 microprocessor PPT and PDF Report
PIN CONFIGURATION:
The 40 pins of a microprocessor are classified as follows:
1 (read operation) (Write operation): A low on states an opinion that the These lines or signals are most importantly used for checking the directions of data flow data must be read from the chosen memory location over the data bus. A low on states an opinion that the data must be written in the chosen memory location over a data bus.
Address Latch Enable (ALE): AD0 to AD7 lines are multiplexed with the lower half of the 16-bit address (AD0 – AD7) and this appears only at the foremost part of the machine cycle (T1). But this address is also required during remaining parts of the cycle (T2 and T3) to approach a specific location in memory or input/output port. So, the lower half of an address need to be latched in “T1” to make it available at T2 and T3. This can be done through an external latch and ALE signal from 8085.
Control and Status Lines:
Address Bus: The 16-bit address upper half appears on the address bus or address lines (A8 – A15). These lines are only used for the most important eight bits of the 16-bit address.
Data Bus: The eight-bit data bus (D0 – D7) is multiplexed with the 16 bit’s lower half address bus (A0 – A7).
I0/, S0, and S1: The signal I0/ states an opinion that whether input/ output operation or memory operation is being done, whereas S0 and S1tells the about the machine cycle in progress.
READY: This signal is used by the microprocessor to know whether a peripheral is set or not to send the data. If it is not ready the processor waits and is used to make the slower peripherals of microprocessor agree or occur in time.
4. Interrupt Signals: The 8085 has five hardware interrupts or externally initiated signals and they are: RST 5.5, RST 6.5, RST 7.5, TRAP and INTR (interrupt), show that the processor has an interrupt.
5. Serial Data Transfer: SID and SOD are used to accept and transmit the data in bit by bit format.
6. DMA Controllers: HOLD and HLDA are the two DMA signals.
7. Reset Signals: The two reset signals are RESET IN and RESET OUT.
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8. Power Supply and Clock: It requires a power supply of 5V and CLK OUT is used as a system clock.
ARCHITECTURE OF 8085:
Arithmetic Logic Unit (ALU): Arithmetic logic unit carries out bitwise arithmetic operations such as addition, subtraction. It also carries out the logical operations like AND, OR rotate and much more.
Timing and Control Unit: The control unit is obliged for all operations and the operations occur at the same time with the help of clock signal.
General Purpose Registers: The eight-bit general purpose registers are B, C, D, E, H, L and these can be used as single eight-bit registers and in pairs as 16-bit registers like BC, DE etc., these are also called as scratch pad registers.
Program Status Word: The group of five flip-flops which deed as status flags and in INTEL 8085 the five status flags are: Carry (CS), Zero (Z), Sign (S), Parity (P), and Auxillary Carry (AC) and along with these there are three undefined bits which together called as program status word.
Program Counter: Program is a collection of instructions and microprocessor searches these instructions from memory. Well, a program counter is a unique register which saves the address of next instruction to be searched.
Stack Pointer: Stack is a reticent part of the memory in RAM where temporary data can be saved.
Instruction Register and Decoder: The processor foremost searches the op-code instruction from the memory and it is stored in a register called instruction register. The stored instruction is sent to the instruction decoder where it is decoded and according to it, the timing and control signals are generated.
Interrupt Control: Normally the processor executes the operations in an order but sometimes it need to automatically execute a collection. After such execution, the program counter needs to come back in the normal condition and the occurrence of such special condition is called interrupt.
Serial I/O Control: This provides two signals namely SID and SOD which are used to receive and transmit the information serially.
Address and Data Bus: 8085 microprocessor’s data bus is eight bit long and eight bits of information can be transmitted over it. In a case of 16 bits of information, the most important bits of an address are sent through (A8 TO A15) and the remaining bits are sent through AD0 to AD7.
TIMING DIAGRAMS:
The 8085 microprocessor has seven basic machine cycles. They are:
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Op-code fetches cycle: Used in executing the operations and it requires 4T OR 6T states.
Memory Read Cycle: Availed to search one byte of memory and 3T- states are needed.
Memory Write Cycle: Availed to send one byte of memory and 3T- states are needed.
I/O Read Cycle: Availed to search one byte of memory from I/O port and 3T- states are needed.
I/O Write Cycle: Availed to write one byte of memory from I/O port and 3T- states are needed.
Interrupt Acknowledge Cycle: The address of interrupt service is needed for the service of the interrupted machine. It requires 6T or 12T states.
Bus idle cycle: Data bus of a microprocessor is not availed.
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Content of the Seminar and pdf report for 8085 microprocessor
Introduction
Features
Pin Configuration
Architecture 0f 8085
The 8085 Bus Structure
Instruction Set
Addressing Modes
Timing diagrams
Reference
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https://studymafia.org/8085-microprocessor-ppt-and-pdf-report/8085 microprocessor PPT and PDF ReportECE Seminars8085 microprocessor PPT and PDF Report: Central Processing Unit (CPU) is carved on a single chip is called a microprocessor. The functional components of a CPU are Arithmetic Logic Unit (ALU), Control and Timing Units, registers are found in a single integrated circuit called IC. The INTEL 8085 microprocessor..Sumit ThakurSumitThakur[email protected]AdministratorI am an Indian Blogger. I am passionate about blogging. If you want to ask me anything about blogging then feel free to ask ?Study Mafia: Latest Seminars Topics PPT with PDF Report 2019