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Interrupts are required in order to get the attention of the CPU. A CPU typically has two interrupt lines. One is the nonmaskable interrupt line (NMI). That is used in the case of critical errors, since this interrupt cannot be ignored. The other one is the regular interrupt line. That is used by hardware devices and certain software to get the attention of the CPU. When you move a mouse, for instance, that creates both a hardware and software interrupt. So the CPU would then process the mouse driver code and move the cursor, then get back to what it was doing.
Hermann Hilpert
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Is there a minimum pulse width required for the interrupt signal?
no
Why rstn has 6 t state in 8085 microprocessors?
4 T-states as usual and 2 more are required to perform n*8 its result gives the vector address of interrupt service routine(rstn is an software interrupt)
What is the use of interrupt vector?
An interrupt vector is the memory address of an interrupt handler, or an index into an array called an interrupt vector table or dispatch table. Interrupt vector tables contain the memory addresses of interrupt handlers. When an interrupt is generated, the processor saves its execution state via a context switch, and begins execution of the interrupt handler at the interrupt vector.
What is an maskable intErrupt?
interrupts in 8085 are basically classified into two types: 1.Maskable 2.Non maskable maskable interrupts are those which can be delayed.This is done by masking off the interrupts which are not required. Maskable interrupts are:RST 7.5,RST 6.5,RST 5.5 and INTR <decreasing order of priority>
What are the different steps to invoke ROM bios function?
the following steps are required to invoke a rom-bios function 1)make an interrupt to occur 2)find out the number of the interrupt that has occurred. 3)obtain from IVT,the address of the ISR which services this interrupt. 4)push the current values of CPU register onto the STACK
What is a sentence with the word interrupt?
"You should not interrupt class," the teacher scolded the boy.
Where is interrupt handler and interrupt vector?
In the 8086/8088, the interrupt vector table is the first 1024 bytes of memory. In the 8085, the interrupt vector table is the first 64 bytes of memory if using the RST form of interrupt, otherwise the interrupt vector is provided by the interrupting device, usually in the form of a CALL instruction. The interrupt handler is wherever the interrupt vector points to.
What is the Prefix of interrupt?
the prefix of interrupt is in
What part of speech is interrupt?
"Interrupt" is a verb.
What are interrupters?
An interrupt is a hardware-generated change of flow within the system. An interrupt handler deals with the cause of the interrupt. Control is then returned to the interrupted context An interrupt is a hardware-generated change of flow within the system. An interrupt handler deals with the cause of the interrupt. Control is then returned to the interrupted context
What is an 8085 interrupt?
There are 2 types interrupts in 8085 such as: 1)hardware interrupt 2)software interrupt
What is vector and non vector interrupts?
VECTOR INTERRUPT If the interrupt is assigned to any predefined branching address to its ISR it is termed as vector interrupt. NON VECTOR INTERRUPT If the interrupt is not assigned to any predefined branching address to its ISR it is termed as non-vector interrupt. PRIYAKRISH
