MICROPROCESSOR AND MICROCONTROLLER

INTERRUPT PROGRAMMING

ARCHITECTURE OF 8085

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
There are two main categories of interrupt:
A
Software and hardware I
B
Singletask and multitask I
C
high level and low level I
D
None of the above
Explanation: 

Detailed explanation-1: -Interrupts have two types: Hardware interrupt and Software interrupt. The hardware interrupt occurrs by the interrupt request signal from peripheral circuits. On the other hand, the software interrupt occurrs by executing a dedicated instruction.

Detailed explanation-2: -Hardware Interrupts Hardware interrupt is caused by any peripheral device by sending a signal through a specified pin to the microprocessor. The 8086 has two hardware interrupt pins, i.e. NMI and INTR. NMI is a non-maskable interrupt and INTR is a maskable interrupt having lower priority.

Detailed explanation-3: -There are six classes of interrupts possible: External. Machine check.

There is 1 question to complete.