Description : What Are The Boons And Banes Of Having More General Purpose Registers In A Microprocessor.?
Last Answer : Answer :If there are more general purpose registers the program writing process is more flexible and convenient. The number of bits that would be required to detect the registers would increase with more ... on the chip. This can create problems in adding / implementing other functions on the chip.
Description : Describe the functions of General purpose registers of 8086 microprocessor.
Last Answer : (i) General Purpose Registers of 8086 1. AX (Accumulator) - Used to store the result for arithmetic / logical operations All I/O data transfer using IN & OUT instructions use A ... Index - acts as the destination for string movement instructions Used to hold offset address of Extra segment.
Description : Mention The Various Functional Blocks Of The 8085 Microprocessor.?
Last Answer : Answer :The various functional blocks of the 8085 microprocessor are: Registers Arithmetic logic unit Address buffer Increment / decrement address latch Interrupt control Serial I/O control Timing and control circuitry Instructions decoder and machine cycle encoder.
Description : What Are The Various Flags Used In 8085?
Last Answer : Answer :Sign flag, Zero flag, Auxillary flag, Parity flag, Carry flag.
Description : Describe Briefly The Accumulator Register Of 8085.?
Last Answer : Answer :It is one of the most important 8 bit register of 8085 It is responsible for coordinating input and output to and from the microprocessor through it. The primary purpose of ... logical operations. This accumulator register is mainly used for arithmetic, logical, store and rotate operations.
Description : Explain Briefly The Flag Register In The 8085 Microprocessor.?
Last Answer : Answer :The flag register in 8085 is an 8-bit register which contains 5 bit positions. These five flags are of 1bit F/F and are known as zero, sign, carry, parity and auxiliary carry. ... addition and subtraction operations. The parity flag is used for results containing an even number of one's.
Description : Explain In Brief The Control And Timing Circuitry Of The 8085.?
Last Answer : Answer :The timing and control circuitry section of the 8085 is responsible for the generation of timing and control signals so that instructions can be executed. The types of signals involved ... of control signals for the executions of instructions and for the sync between external devices.
Description : Does The 8085 Support Externally Initiated Operations? If Yes How?
Last Answer : Answer :Yes the 8085 does support several externally initiated operations. The possible operations and the corresponding pins for them in the 8085 are as follows: It supports resetting ( this is possible ... It also has a HOLD pin which can basically pause the operation till required/ as required.
Description : Mention The Different Types Of Data Transfers Possible In The 8085.?
Last Answer : Answer :The various types of data transfer operations possible are: Data transfer is possible between two registers. It is also possible between a memory location and a register. Also it can occur between ... . In reality data is never transferred it can only be copied from one location to another.
Description : Explain All The Addressing Modes Of The 8085 With The Help Of Examples.?
Last Answer : Answer :The various types of addressing modes of the 8085 are as follows: Direct addressing: The instructions in itself contain the opearand. For ex. STA5513H or in/out instructions such as IN PORT C. ... etc. Implicit addressing: this form of addressing contains no operands. For ex. RAR, CMA etc.
Description : Explain Briefly What Happens When The Intr Signal Goes High In The 8085?
Last Answer : Answer :The INTR is a maskable interrupt for the 8085. It has the lowest priority and is also non vectored. When this INTR signal goes into the high state the following things occur / ... the processor saves the address of new instruction into the STACK and an interrupt service subroutine begins.
Description : Explain Briefly The Trap Input For The 8085.?
Last Answer : Answer :The TRAP input is sensitive to both edge and level. The pulse width for this signal should be in excess as compared to the normal noise width. A second trap will never be able to ... to low transition. The pulse widths are wider than normal widths so as to prevent unwanted false triggers.
Description : How Can Signals Be Classified For The 8085 Microprocessor?
Last Answer : Answer :The signals of the 8085 microprocessor based on their functions can be classified into 7 categories namely: Frequency and power signals Address and data buses The control bus Interrupt Signals Serial Input / Output signals DMA signals Reset Signals
Description : Can An Rc Circuit Be Used As Clock Source For 8085?
Last Answer : Answer :Yes, it can be used, if an accurate clock frequency is not required. Also, the component cost is low compared to LC or Crystal.
Description : In 8085 Which Is Called As High Order / Low Order Register?
Last Answer : Answer :Flag is called as Low order register & Accumulator is called as High order Register.
Description : How Many Interrupts Are There In 8085?
Last Answer : Answer :There are 12 interrupts in 8085.
Description : In What Way Interrupts Are Classified In 8085?
Last Answer : Answer :In 8085 the interrupts are classified as Hardware and Software interrupts.
Description : Which Stack Is Used In 8085?
Last Answer : Answer :LIFO (Last In First Out) stack is used in 8085.In this type of Stack the last stored information can be retrieved first.
Description : List any four salient features of 8085 microprocessor
Last Answer : Features of 8085: 1. 16 address line so 216=64 Kbytes of memory can be addressed. 2. Operating clock frequency is 3MHz and minimum clock frequency is 500 KHz. 3. On chip bus controller ... duty cycle TTL clock 10. Provide 2 serial I/O lines, so peripheral can be interfaced with 8085 μp
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 : 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 : 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 : What is the size of SP register in 8085 microprocessor? A) 16 bits B) 8 bits C) 64 bits D) 48 bits
Last Answer : What is the size of SP register in 8085 microprocessor? A) 16 bits B) 8 bits C) 64 bits D) 48 bits
Description : The ALE line of an 8085 microprocessor is used to (A) latch the output of an I/O instruction into an external latch. (B) deactivate the chip-select signal from memory devices. (C) find the interrupt ... of the TRAP interrupt. (D) latch the 8 bits of address lines AD7-AD0 into an external latch.
Last Answer : The ALE line of an 8085 microprocessor is used to latch the 8 bits of address lines AD7-AD0 into an external latch.
Description : List the 16 – bit registers of 8085 microprocessor.
Last Answer : Stack pointer (SP) and Program counter (PC).
Description : In 8085 name the 16 bit registers? a) Stack pointer b) Program counter c) a & b
Last Answer : c) a & b
Description : State the functions of temporary registers of 8085 microprocessor.
Last Answer : Temp Register (8 bits) is also called as operand register as it is used by μp for storing one of the operands during an operation and also for storing the result of any execution temproary.
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Description : How do registers speed up processing ?
Last Answer : : The register is used as a temporary memory for calculations for faster processing. These are in the CPU. Register is a flip flop or temporary memory. Registers are required for short-term storage ... file. The larger the size of the register, the faster the processing speed of the computer.
Description : How many types of shift registers and what are they ?
Last Answer : 3 types of shift register. Namely : left shift , right shift and bidirectional register.
Description : How do the contents of the MAR and MDR registers changes during the fetch decode execute cycle?
Last Answer : Need answer
Description : What is registers in computers?
Last Answer : Ans:- Register is synchronous circuit thus all flip-flops are controlled by a common clock line.There is four type of Register:(i) Serial input, serial output (SISO)(ii) Parallel ... output(SIPO)(iv) Parallel input, parallel output(PIPO)Answered by HAFIJUR RAHMANNowgong College,KKHSOU(Assam)India
Description : What are the functions of processor registers?
Last Answer : To store small amounts of data in the short term. Registers areaccessed faster than the main memory (RAM).
Description : What are 3 different types of registers in the CPU?
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Description : Which of the following registers is used to keep track of address of the memory location where the next instruction is located? A) Memory address register B) Memory data register C) Instruction register D) Program counter
Last Answer : Answer : D
Description : Which of the following are the two main components of the CPU? A) Control Unit and Registers B) Registers and Main Memory C) Control unit and ALU D) ALU and bus
Last Answer : Answer : C
Description : Which is not consisted in a processor A) ALU B) CU C) Memory D) Registers
Description : Which of the following registers is loaded with the contents of the memory location pointed by the PC? A) Memory address registers B) Memory data registers C) Instruction register D) Program counter
Description : The ALU of a computer normally contains a number of high speed storage element called A) Semiconductor memory B) Registers C) Hard disks D) Magnetic disk
Last Answer : Answer : B
Description : Which unit is known as nerve center of computer? A) ALU B) CU C) Memory D) Registers
Last Answer : Answer : A
Description : Which of the following is the most quickly accessible storage? A) RAM B) Registers C) Disks D) Pen Drive
Description : The contents of information are stored in A) Memory data register B) Memory address register C) Memory arithmetic registers D) Memory access register
Description : Registers which are partially visible to users and used to hold conditional codes (bits set by the CPU hardware as the result of operations), are known as A) PC B) Flags C) Memory Address Registers D) General Purpose Registers
Description : Registers, which are partially visible to users and used to hold conditional, are known as A) PC B) Memory address registers C) General purpose register D) Flags
Description : The part of a processor which contains hardware necessary to perform all the operations required by a computer: a) Data path b) Controller c) Registers d) Cache
Last Answer : Answer: a Explanation: A processor is a part of the computer which does all the data manipulation and decision making. A processor comprises of: A data path which contains the hardware necessary to ... the data path what needs to be done. The registers act as intermediate storage for the data