MICROPROCESSOR AND MICROCONTROLLER

Detailed explanation-1: -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-2: -TYPE 1 interrupt represents single-step execution during the debugging of a program. TYPE 2 interrupt represents non-maskable NMI interrupt. TYPE 3 interrupt represents break-point interrupt. TYPE 4 interrupt represents overflow interrupt.

Detailed explanation-3: -There are 5 Hardware Interrupts in 8085 microprocessor. They are – INTR, RST 7.5, RST 6.5, RST 5.5, TRAP. Software Interrupts are those which are inserted in between the program which means these are mnemonics of microprocessor.

Detailed explanation-4: -Type 0: Divide by Zero Interrupt. 8086 supports division (unsigned/signed) instruction. Type 1: Single Step Interrupt (INT1) Type 2: NMI (Non Mask-able Interrupt) (INT2) Type 3: One Byte Interrupt/Breakpoint Interrupt (INT3) Type 4: Interrupt on Overflow (INTO)