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Help! what does this mean

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TT

New Member
Hi there,

reading the features of the Atmel AT89s52 I wonderd what the following feature means:

Six-vector two-level intrerupt architecture

Thnx

Thom
 

bmcculla

New Member
Hello,

This means there are six different interrupts you can use. Each of these interrupts is assigned one of two levels (High Priority and Low Priority). These levels detirmine whether or not the interrupts can interrupt each other. A Low Priority Interrupt can be interrupted by a high priority interrupt but if two interrupts of the same level occur at the same time then one has to wait for the first to finish.
Hope this helps.

-Brent
 
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