MICROPROCESSOR AND MICROCONTROLLER

Detailed explanation-1: -An interrupt service routine (ISR) is a software routine that hardware invokes in response to an interrupt. ISR examines an interrupt and determines how to handle it executes the handling, and then returns a logical interrupt value. If no further handling is required the ISR notifies the kernel with a return value.

Detailed explanation-2: -Interrupt Service Routine. ● ISR is also called device driver in case of. the devices and called exception or signal. or trap handler in case of software. interrupts.

Detailed explanation-3: -What does ISR stand for? interrupt standard routine. interrupt service routine. interrupt software routine. interrupt synchronous routine.

Detailed explanation-4: -In computer systems programming, an interrupt handler, also known as an interrupt service routine or ISR, is a special block of code associated with a specific interrupt condition.

Detailed explanation-5: -An ISR (Interrupt Service Routine) that’s added by InterruptAttach() runs on the CPU that takes the interrupt. An IST (Interrupt Service Thread) that receives the event set up by InterruptAttachEvent() runs on any CPU, limited only by the scheduler and the runmask.