INTRODUCTION TO MICROPEOCESSOR
MODEL OF MICROPROCESSOR
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Detailed explanation-1: -There are five hardware interrupts.
Detailed explanation-2: -Interrupts in 8085. Interrupts are the signals generated by the external devices to request the microprocessor to perform a task. There are 5 interrupt signals, i.e. TRAP, RST 7.5, RST 6.5, RST 5.5, and INTR.
Detailed explanation-3: -The hardware interrupts are initiated by an external device by placing an appropriate signal at the interrupt pin of the processor. If the interrupt is accepted, then the processor executes an interrupt service routine (ISR). Hence there are total 13 interrupts in 8085.
Detailed explanation-4: -In the 8085 microprocessor, all the hardware interrupts excluding the TRAP are maskable interrupts. Whereas, the interrupt raised by the TRAP pin and all the software-initiated interrupts are the non-maskable interrupts.