![]() ![]() ![]() It transfers the content of the program counter into the stack.Įach interrupt can be enabled or disabled by setting bits of the IE register and the whole interrupt system can be disabled by clearing the EA bit of the same register. When an interrupt is received, the controller stops after executing the current instruction. In this topic, we will discuss the interrupts in 8051 using AT89S52 microcontroller. The interrupt mechanism helps to embed your software with hardware in a much simpler and efficient manner. It then passes the control to the main program where it had left off.Īs code size increases and your application handles multiple modules, sequential coding would be too long and too complex. ![]() Interrupts are the events that temporarily suspend the main program, pass the control to other functions or sources and execute their task. ![]()
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