Interrupt handling in 8051 microcontroller datasheet


Interrupts in 8051 microcontroller are more desirable to reduce the regular status checking of the interfaced devices or inbuilt devices. Interrupt is an event that temporarily suspends the main program, passes the control to a special code section, executes the event-related function and resumes the main program flow where it had left off. Dec 02, 2015 · The stack on a microcontroller is primarily used during subroutine calls and jumps to an interrupt handler. It is a “Last In First Out” buffer that is used to store return addresses. During a subroutine call, the current program counter address is “pushed” onto the stack with a +1 offset added to it, then the program counter is modified ... Interrupt Priority . All the 5 interrupts of 8051 has got different priorities. Interrupts are serviced according to it’s priority order. From the table above, you can see that INT0 has the highest priority of 1 and Timer 0 comes next with priority value 2. Atmel 8051 Microcontroller Family - Product Selection Guide Max speed depends on Vcc voltage. Frequencies and Currents listed are for Vcc= 5.0V & T=25c **Low voltage operation = 2.7-6.0V Operation For further information please contact Equinox Technologies UK Ltd on Tel: +44 (0) 1204 529000 Fax: +44 (0) 1204 535555 E-mail: [email protected] Atmel 8051 Microcontroller Family - Product Selection Guide Max speed depends on Vcc voltage. Frequencies and Currents listed are for Vcc= 5.0V & T=25c **Low voltage operation = 2.7-6.0V Operation For further information please contact Equinox Technologies UK Ltd on Tel: +44 (0) 1204 529000 Fax: +44 (0) 1204 535555 E-mail: [email protected] Up to now, 8051micro controller is the superhero in all microcontrollers it means it’s the long-lived microcontroller because still some devices are tremendously working on this 8051 microcontroller. Here will discuss what is ATmega16, its features, pin diagram, interfacing, and its datasheet.