The Local APIC can receive an interrupt from any of the following local sources:
The processor's Local Interrupt pin 0 (LINT0).
The processor's Local Interrupt pin 1 (LINT1).
The programmable timer incorporated within the Local APIC.
The processor's Performance Counters.
The processor's internal thermal sensor.
The Local APIC's error detection logic.
The sections that follow provide a detailed description of each of the local interrupt sources.
The Local APIC incorporates a register set that is used to set up the Local APIC to handle each of the local interrupts. This register set is a subset of the Local APIC's overall register set and is referred to as the Local Vector Table (LVT). ...