1.The excluding interrupts are INT0 & INT1
2.The Timer0 and Timer1 are interrupts are generated by TF0 and TF1
how many interrupts in 8051
You need a reset circuit in the 8051, as in every logic circuit, in order to ensure that it starts up in a known state.
software interrupts
07H
In the 8051 microcontroller, the reset signal duration must be at least 2 machine cycles, which corresponds to a minimum of 24 oscillator periods for proper initialization. This ensures that the microcontroller can properly reset and start executing instructions from the designated reset vector. A typical recommendation is to hold the reset signal active for about 100 milliseconds to ensure reliable operation.
Because it is 8- 8-bit controller (8000 series) 5- It has 5 interrupts 1- It has only one serial communication port
An interrupt in the 8051 microcontroller is a mechanism that temporarily halts the execution of the main program to allow the processor to address an event or condition that requires immediate attention, such as a timer overflow, external signal, or serial communication. The 8051 supports multiple interrupt sources, including external interrupts (INT0 and INT1), timer interrupts (Timer 0 and Timer 1), and a serial communication interrupt. When an interrupt occurs, the microcontroller saves the current program state, jumps to a predefined interrupt service routine (ISR), and upon completion, resumes the original program. This allows for efficient handling of asynchronous events without continuous polling.
because i said so thats why
Intel
There are three types of interrupts.... 1. internal Interrupts 2. External Interrupts 3. Software Interrupts... read more
avr is high speed cmpar to 8051.in 8051 there are less number of instructions
it has 256 interrupts ..