Types of interrupts
The intel 8085 has five interrupt inputs namely TRAP, RST7.5, RST6.5, RST5.5 AND INTR. The INTR has the lowest priority ..when interrupts are to be used they are enabled by software using teh off interrupts of intel 8085. The instruction EI sets the interrupt enable flip flop to enable the interrupts ..the use of the instruction EI enables all the interrupt..the instruction DI disable the interrupt....the DI instruction sets resets teh interrupt enable flip flop and disable all teh interrupt except nonmaskable interrupt TRAP..the system Reset also resets the interrupt enable flip flop..