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
Because it is 8- 8-bit controller (8000 series) 5- It has 5 interrupts 1- It has only one serial communication port
Intel
because i said so thats why
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 ..
The 8051 runs on +5vdc.
Interrupt are automatically disabled on interrupt entry (except for TRAP, which is non-maskable) so that interrupts do not, by default, nest. You would also disable enterrupts surrounding a critical section of code that, perhaps, manipulated an interrupt register. It is possible to re-enable interrupts during an interrupt service routine. Typically, you would have a hierarchy, such as RST7.5, then RST 6.5, then RST 5.5. Initially, at interrupt entry, all interrupts are disabled. You could then manipulate the interrupt mask using the RIM and SIM instructions and enable further interrupts, allowing a nested architecture. At interrupt exit, then, you would disable interrupts, reset the mask, enable interrupts, and return from interrupt.