Interrupts

Table 1. Available Interrupt Vectors and Sources in Normal Mode
Name	Vector Description	Conditions
OVF	Overflow or underflow interrupt	The counter has reached TOP or BOTTOM.
CMP0	Compare Channel 0 interrupt	Match between the counter value and the Compare 0 register.
CMP1	Compare Channel 1 interrupt	Match between the counter value and the Compare 1 register.
CMP2	Compare Channel 2 interrupt	Match between the counter value and the Compare 2 register.

Table 2. Available Interrupt Vectors and Sources in Split Mode
Name	Vector Description	Conditions
LUNF	Low-byte Underflow interrupt	Low byte timer reaches BOTTOM.
HUNF	High-byte Underflow interrupt	High byte timer reaches BOTTOM.
LCMP0	Compare Channel 0 interrupt	Match between the counter value and the low byte of the Compare 0 register.
LCMP1	Compare Channel 1 interrupt	Match between the counter value and the low byte of the Compare 1 register.
LCMP2	Compare Channel 2 interrupt	Match between the counter value and the low byte of the Compare 2 register.

When an interrupt condition occurs, the corresponding interrupt flag is set in the Interrupt Flags register of the peripheral (peripheral.INTFLAGS).

An interrupt source is enabled or disabled by writing to the corresponding enable bit in the peripheral’s Interrupt Control (peripheral.INTCTRL) register.

An interrupt request is generated when the corresponding interrupt source is enabled, and the interrupt flag is set. The interrupt request remains active until the interrupt flag is cleared. See the peripheral’s INTFLAGS register for details on how to clear interrupt flags.