MICROPROCESSOR AND MICROCONTROLLER

Detailed explanation-1: -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. Vector interrupt − In this type of interrupt, the interrupt address is known to the processor.

Detailed explanation-2: -RST7. 5 pin is an input which is edge-sensitive. Peripherals uses it for sending a pulse, rather than a sustained high level, for the interruption of the processor. Internal to 8085 we have a flip-flop which gets connected to the interrupt pin RST7.

Detailed explanation-3: -The RST 7.5 interrupt is edge sensitive (positive edge). To initiate the RST 7.5, the interrupt signal has to make a low to high transition an it need not remain high until it is recognized. The RST 6.5, RST 5.5 and INTR are level sensitive interrupts.

Detailed explanation-4: -TRAP : It is a non-maskable, edge and level-triggered interrupt. It is unaffected by any mask or interrupt enable. RST 7.5 : It is a maskable, edge-triggered interrupt request input line. RST 6.5 and RST 5.5 : These are level-triggered, maskable interrupt request input lines. INTR :