To establish a communication between 8085 microprocessor and 8255 Programmable Peripheral Interface chip. the status of the chip select input would be
(a) TRISTATE (b) HIGH (b) LOW (d) DON’T CARE
Description : The 8085 Microprocessor has A) 8-bits Data bus and 16-bits Address bus B) 8-bits Data bus and 8-bits Address bus C) 16-bits Data bus and 16-bits Address bus D) 32-bits Data bus and 8-bits Address bus
Last Answer : B) 8-bits Data bus and 8-bits Address bus.
Description : The clock frequency of an 8085 microprocessor based system is 3 MHz. What should be the minimum pulse width of the INTR signal so that it is recognized successfully? A) 5.6 µs B) 5.7 µs C) 5.8 µs D) 5.9 µs
Last Answer : The clock frequency of an 8085 microprocessor based system is 3 MHz. What should be the minimum pulse width of the INTR signal so that it is recognized successfully? A) 5.6 µs B) 5.7 µs C) 5.8 µs D) 5.9 µs
Description : In 8085 microprocessor, how many T-states does OPCODE FETCH machine cycle normally require (i.e., when HOLD and WAIT signals are NOT forced)? A) 4 to 6 B) 3 to 8 C) 2 to 3 D) 8 to 12
Last Answer : In 8085 microprocessor, how many T-states does OPCODE FETCH machine cycle normally require (i.e., when HOLD and WAIT signals are NOT forced)? A) 4 to 6 B) 3 to 8 C) 2 to 3 D) 8 to 12
Description : Then number of T-states of the instruction STA in 8085 microprocessor is A) 10 B) 12 C) 13 D) 16
Last Answer : Then number of T-states of the instruction STA in 8085 microprocessor is 13
Description : What is the size of memory which can be accessed by direct accessing in 8085 microprocessor? A) 64 kB B) 4 kB C) 128 kB D) 128 MB
Last Answer : What is the size of memory which can be accessed by direct accessing in 8085 microprocessor? A) 64 kB B) 4 kB C) 128 kB D) 128 MB
Description : In an 8085 microprocessor, after the execution of XRA A instruction A) the carry flag is set B) the accumulator contains FFH C) the zero flag is set D) the accumulator contents are shifted left by one bit
Last Answer : In an 8085 microprocessor, after the execution of XRA A instruction the zero flag is set
Description : In 8085 microprocessor, the value of the most significant bit of the result following the execution of any arithmetic of Boolean instruction is stored in the (1) Carry status flag (2) Auxiliary carry status flag (3) Sign status flag (4) Zero status flag
Last Answer : In 8085 microprocessor, the value of the most significant bit of the result following the execution of any arithmetic of Boolean instruction is stored in the Sign status flag
Description : 8085 microprocessor has ________ individual flags during arithmetic and logic operations.
Last Answer : 8085 microprocessor has 5 individual flags during arithmetic and logic operations.
Description : When a program is being executed in an 8085 microprocessor, its Program Counter contains (A) the number of instructions in the current program that have already been executed (B) the total number ... is being currently executed (D) the memory address of the instruction that is to be executed next
Last Answer : When a program is being executed in an 8085 microprocessor, its Program Counter contains the memory address of the instruction that is to be executed next
Description : In an 8085 microprocessor, the contents of the Accumulator, after the following instructions are executed will become XRA A MVI B, F0 H SUB B (A) 01 H (B) 0F H (C) F0 H (D) 10 H
Last Answer : In an 8085 microprocessor, the contents of the Accumulator, after the following instructions are executed will become XRA A MVI B, F0 H SUB B (A) 01 H (B) 0F H (C) F0 H (D) 10 H
Description : Intel's 8085 microprocessor chip contains (A) seven 8 bit registers (B) 8 seven bits registers (C) seven 7 bit registers (D) eight 8 bit registers.
Last Answer : Intel's 8085 microprocessor chip contains seven 8 bit registers
Description : Consider the following program segment with 8085 microprocessor LXI H 3600H MOV A, M HLT The MOV instruction involves (a) indirect addressing (b) immediate addressing (c) implicit addressing (d) direct addressing
Last Answer : Consider the following program segment with 8085 microprocessor LXI H 3600H MOV A, M HLT The MOV instruction involves (a) indirect addressing (b) immediate addressing (c) implicit addressing (d) direct addressing
Description : Which flag does not change by the execution of the instruction DCR B in 8085 microprocessor ? (a) Parity (b) Carry (c) Zero (d) Sign
Last Answer : Which flag does not change by the execution of the instruction DCR B in 8085 microprocessor ? (a) Parity (b) Carry (c) Zero (d) Sign
Description : The zero flag of 8085 microprocessor is to be set keeping the content of the accumulator unchanged. Which instruction is to be used? (a) MOV A,A (b) ANI 00H (c) XRA A (d) CMP A
Last Answer : The zero flag of 8085 microprocessor is to be set keeping the content of the accumulator unchanged. Which instruction is to be used? (a) MOV A,A (b) ANI 00H (c) XRA A (d) CMP A
Description : The 8085 is a – microprocessor 1. 4 bit 2. 8 bit 3. 16 bit 4. 32 bit
Last Answer : The 8085 is a 8 bit microprocessor
Description : Which of the following instructions is not available in 8085 microprocessor? (A) LDA 3850 (B) XTHL (C) push PSW (D) LDAXH
Last Answer : Which of the following instructions is not available in 8085 microprocessor? (A) LDA 3850 (B) XTHL (C) push PSW (D) LDAXH
Description : In 8085, whenever a signal is received at TRAP terminal, its program execution is transferred to a subroutine on address A) 0000 H B) 002C H C) 0024 H D) 0004 H
Last Answer : In 8085, whenever a signal is received at TRAP terminal, its program execution is transferred to a subroutine on address 0024 H
Description : The 16 bit flag of 8086 microprocessor is responsible to indicate ___________ A. the condition of result of ALU operation B. the condition of memory C. the result of addition D. the result of subtraction
Last Answer : The 16 bit flag of 8086 microprocessor is responsible to indicate the condition of result of ALU operation
Description : In 8086 microprocessor , the address bus is ________ bit wide A. 12 bit B. 10 bit C. 16 bit D. 20 bit
Last Answer : In 8086 microprocessor, the address bus is 20 bit
Description : The microprocessor can read/write 16 bit data from or to ________ A. memory B. I /O device C. processor D. register
Last Answer : The microprocessor can read/write 16 bit data from or to memory
Description : The intel 8086 microprocessor is a _______ processor A. 8 bit B. 16 bit C. 32 bit D. 4 bit
Last Answer : The intel 8086 microprocessor is a 16 bit processor
Description : The purpose of the microprocessor is to control ______ A. memory B. switches C. processing D. tasks
Last Answer : The purpose of the microprocessor is to control memory
Description : Microprocessor is the ______ of the computer and it perform all the computational tasks A. main B. heart C. important D. simple
Last Answer : Microprocessor is the heart of the computer and it performs all the computational tasks
Description : Microprocessor is a/an _______ circuit that functions as the CPU of the compute A. electronic B. mechanic C. integrating D. processing
Last Answer : Microprocessor is a/an electronic circuit that functions as the CPU of the compute
Description : A microprocessor is a _______ chip integrating all the functions of a CPU of a computer. A. multiple B. single C. double D. triple
Last Answer : A microprocessor is a single chip integrating all the functions of a CPU of a computer.
Description : In a 16-bit microprocessor, a single word is A) 16 bit data B) 32 bit data C) 8 bit data D) 64 bit data
Last Answer : In a 16-bit microprocessor, a single word is 16 bit data
Description : In the 8085A Microprocessor, arithmetic and logical operations are performed through which of the following? A) Stack B) ALU C) I/O D) Register
Last Answer : In the 8085A Microprocessor, arithmetic and logical operations are performed through which of the following? A) Stack B) ALU C) I/O D) Register
Description : What is the Power Supply specification for 8085AH microprocessor? A) Single +5V supply with 10% voltage margins B) Dual +5V supply with 10% voltage margins C) Single +10V supply with 5% voltage margins D) Dual +5V supply with 5% voltage margins
Last Answer : What is the Power Supply specification for 8085AH microprocessor? A) Single +5V supply with 10% voltage margins B) Dual +5V supply with 10% voltage margins C) Single +10V supply with 5% voltage margins D) Dual +5V supply with 5% voltage margins
Description : In a microprocessor, the address of the next instruction to be executed, is stored in A) Stack pointer B) Address latch C) Program counter D) General purpose register
Last Answer : In a microprocessor, the address of the next instruction to be executed, is stored in Program counter
Description : To read or write a complete word from / to the memory in 8086 microprocessor and if it is located at an even address, the number of Read or Write cycles required is
Last Answer : To read or write a complete word from / to the memory in 8086 microprocessor and if it is located at an even address, the number of Read or Write cycles required is one
Description : In a microprocessor the service routine for a certain interrupt starts from a fixed location of memory which cannot be externally set but the interrupt can be delayed or rejected. Such an interrupt is
Last Answer : In a microprocessor the service routine for a certain interrupt starts from a fixed location of memory which cannot be externally set but the interrupt can be delayed or rejected. Such an interrupt is Maskable and vectored
Description : Chock Speed of which Intel microprocessor is 3 GHz? a. Core 2 Duo b. Core 2 Quad c. Pentium 4 d. Pentium III
Last Answer : Chock Speed of which Intel microprocessor is 3 GHz? a. Core 2 Duo b. Core 2 Quad c. Pentium 4 d. Pentium III
Description : What is the difference between a microcontroller and a microprocessor?
Last Answer : Compare microprocessor and microcontroller Microprocessor Microcontroller 1)Inbuilt RAM and ROM 1)Do not have inbuilt RAM or ROM 2)Inbuilt timer 2)Doesn't have inbuilt timer ... same memory 6)Many Multifunction pins on the IC 6)less multifunction Pins on IC.
Description : User programmable terminals that combine VDT hardware with built-in microprocessor is a. Kips b. PC c. Mainframe d. Intelligent terminals
Last Answer : Intelligent terminals
Last Answer : d. Intelligent terminals
Description : 8086 is interfaced to two 8259s (Programmable interrupt controllers). If 8259s are in master slave configuration the number of interrupts available to the 8086 microprocessor is a) 8 b) 16 c) 15 d) 64
Last Answer : a) 8
Description : 8086 microprocessor is interfaced to 8253 a programmable interval timer. The maximum number by which the clock frequency on one of the timers is divided by a) 216 b) 28 c) 210 d) 220
Last Answer : d) 220
Description : What is Microprocessor 8085?
Last Answer : 8085 is a 8 bit microprocessor designed by Intel.
Description : What is the microprocessor - 8085 architecture?
Last Answer : 8085 Architecture - II Written by: shankar â⠬¢ Edited by: KennethSleightPublished Sep 30, 2009 â⠬¢ Related Guides: IntelLearn in detail about the functions and working of flags, the timing ... ALU alone cannot successfully process a data and provide the result to the programmer. There are
Description : List the four instructions which control the interrupt structure of the 8085 microprocessor.
Last Answer : • DI ( Disable Interrupts ) • EI ( Enable Interrupts ) • RIM ( Read Interrupt Masks ) • SIM ( Set Interrupt Masks )
Description : How many operations are there in the instruction set of 8085 microprocessor?
Last Answer : There are 74 operations in the 8085 microprocessor.
Description : List the 16 – bit registers of 8085 microprocessor.
Last Answer : Stack pointer (SP) and Program counter (PC).
Description : What is Microprocessor? Give the power supply & clock frequency of 8085
Last Answer : A microprocessor is a multipurpose, programmable logic device that reads binary instructions from a storage device called memory accepts binary data as input and processes data according ... provides result as output. The power supply of 8085 is +5V and clock frequency in 3MHz.
Description : The stack pointer in the 8085 microprocessor is a: a) 16 bit register that points to stack memory locations b) 16 bit accumulator c) Memory location in the stack d) None of The Above
Last Answer : a) 16 bit register that points to stack memory locations
Description : What type of architecture is used in 8085 microprocessor?
Last Answer : Ans- INTEL 8085 is a 8-bit microprocessor. It's based on Von-Neumann architecture in which the data and instructions are in the same memory space without any distinction between them. Data line: 8-bits--Can ... of data at a time. Address line: 16-bits--Can address upto 2^16(64KB) of address space.
Description : What is function of ALE in 8085 microprocessor?
Last Answer : Ans-AlE stands for the address latch enableit 's working is that it differentiate the address and data bus in microprocessor.when it is high it select address bus .when it is low it select data bus.
Description : How many speed of 8088,8085,8086 microprocessor: a. 2.5 Million instruction per second b. 1.5 Million instruction per second c. 3.5 Million instruction per second d. 1.6 Million instruction per second
Last Answer : a. 2.5 Million instruction per second
Description : Which is 16 Bit microprocessor: a. 8088 b. 8086 c. 8085 d. All of these
Last Answer : d. All of these
Description : The___ was very successful in the calculator market at that time: a. Motorola 6800 and 6809 b. Microprocessor 4004 c. Intel 8085 d. None of these
Last Answer : b. Microprocessor 4004