How Many Interrupts Are There In 8085?

1 Answer

Answer :

Answer :There are 12 interrupts in 8085.

Related questions

Description : In What Way Interrupts Are Classified In 8085?

Last Answer : Answer :In 8085 the interrupts are classified as Hardware and Software interrupts.

Description : What Are The Two Major Differences Between Intr And Other Interrupts ( Hardware)?

Last Answer : Answer :The two major differences between INTR and the other hardware interrupts are as follows:All the hardware interrupts are vectored interrupts but the INTR interrupt is not so. An INTR interrupt will ... saved but in the case of other hardware interrupts the locations is saved in the stack.

Description : Classify Interrupts On The Basis Of Signals. State Their Differences.?

Last Answer : Answer :On the basis of level the signals can be classified into the following types: Single level interrupts Multi level interrupts The differences between them are as follows: For single the ... multi level it is not necessary. Single level interrupts are much slower than multi level interrupts.

Description : What Are Software Interrupts?

Last Answer : Answer :RST0, RST1, RST2, RST3, RST4, RST5, RST6, RST7.

Description : What Are Hardware Interrupts?

Last Answer : Answer :TRAP, RST7.5, RST6.5, RST5.5, INTR.

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 : 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 : 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 : 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 : What Are The Various Flags Used In 8085?

Last Answer : Answer :Sign flag, Zero flag, Auxillary flag, Parity flag, Carry flag.

Description : What Are The Various Registers In 8085?

Last Answer : Answer :Accumulator register, Temporary register, Instruction register, Stack Pointer, Program Counter are the various registers in 8085.

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 : How many interrupts does 8085 have, mention them

Last Answer : The 8085 has 5 interrupt signals; they are INTR, RST7.5, RST6.5, RST5.5 and TRAP

Description : Explain priority interrupts of 8085.

Last Answer : The 8085 microprocessor has five interrupt inputs. They are TRAP, RST 7.5, RST 6.5, RST 5.5, and INTR. These interrupts have a fixed priority of interrupt service. If two or more interrupts go ... 8085 is shown in the table. Interrupts Priority TRAP RST 7.5 RST 6.5 RST 5.5 INTR

Description : The number of software interrupts in 8085 is ____ a) 5 b) 8

Last Answer : b) 8

Description : 8085 microprocessor has ............. hardware interrupts. (A) 2 (B) 3 (C) 4 (D) 5

Last Answer : (D) 5

Description : Have you ever known someone who interrupts every conversation to turn the focus back on themselves?

Last Answer : When I talk to someone that does that, after a few sentences of it happening I pretty much stop talking. If I do continue, it will be small talk.

Description : In the event of a catastrophe that interrupts availability of insulin for a long period of time what should a diabetic do to stay alive and healthy?

Last Answer : I would probably not eat much at all and when I did it would be low glycemic index foods.I would stay active and drink as much water as possible.I might try to supplement with chromium ,vanadium and ... resitance.Other than that,there isn't much one can do and death would be inevitable.I am Type1.

Description : Would You would use the imperfect tense to talk about an action that interrupts another?

Last Answer : We don't use the name imperfect tense in English. The imperfect is a verb form, found in various languages, which combines past tense and imperfective aspect. It can therefore have meanings ... action is was walking, the action that interrupted the longer action is tripped which is past simple

Description : Would You would use the imperfect tense to talk about an action that interrupts another?

Last Answer : We don't use the name imperfect tense in English. The imperfect is a verb form, found in various languages, which combines past tense and imperfective aspect. It can therefore have meanings ... action is was walking, the action that interrupted the longer action is tripped which is past simple

Description : What are the functions of interrupts?

Last Answer : Inform the CPU of the occurrence of external asynchronous events or the presence of external unpredictable conditions, so that the CPU can execute a routine to respond appropriately and promptly.

Description : What type of control pins are needed in a microprocessor to regulate traffic on the bus, in order to prevent two devices from trying to use it at the same time? A) Bus control B) Interrupts C) Bus arbitration D) Status

Last Answer : Answer : C

Description : Interrupts which are initiated by an I/O drive are ___________ A. internal B. external C. Both (A) and (B) D. All of the above

Last Answer : B. external

Description : Interrupts that are initiated by an instruction are_______ A. internal B. external C. hardware D. software

Last Answer : D. software

Description : The method which offers higher speeds of I/O transfers is ___________ a) Interrupts b) Memory mapping c) Program-controlled I/O d) DMA

Last Answer : DMA

Description : The method of synchronising the processor with the I/O device in which the device sends a signal when it is ready is? a) Exceptions b) Signal handling c) Interrupts d) DMA

Last Answer : Interrupts

Description : What are various interrupts supported by TMS 320 c54 processor?

Last Answer : The C54x DSP supports both software and hardware interrupts: ✔ A software interruptis requested by a program instruction (INTR, TRAP,or RESET) ✔ A hardware interrupt is requested by a ... interrupt ports. ✔ Internal hardware interrupts are triggered by signals from the on-chip peripherals.

Description : Interrupts which are initiated by an I/O drive are a. internal b. external c. software d. all of above

Last Answer : b. external

Description : Interrupts which are initiated by an instruction are a. internal b. external c. hardware d. software

Last Answer : b. external

Description : Interrupts which are initiated by an instruction are a. internal b. external c. hardware d. software

Last Answer : d. software

Description : What type of control pins are needed in a microprocessor to regulate traffic on the bus, in order to prevent two devices from trying to use it at the same time? a. Bus control b. Interrupts c. Bus arbitration d. Status

Last Answer : c. Bus arbitration

Description : Which is used to store critical pieces of data during subroutines and interrupts: a. Stack b. Queue c. Accumulator d. Data register

Last Answer : a. Stack

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