The SMT has three interrupts located in one of the PIR registers:
- Pulse Width
Acquisition Interrupt (SMTxPWAIF): Interrupt
triggers when the SMTxCPW register is updated with the
SMTxTMR register value.
- Period
Acquisition Interrupt (SMTxPRAIF): Interrupt
triggers when the SMTxCPR register is updated with the
SMTxTMR register value.
- Counter Period
Match Interrupt (SMTxIF): Interrupt triggers
when the SMTxTMR register equals the SMTxPR register.
Each of the above interrupts can be enabled/disabled using the
corresponding bits in the PIE register.