PWM Interrupt Indication Register
| PWMIF0 | PWM channel 0 Interrupt Status Flag is set by hardware when PWM0 down counter reaches zero, software can clear this bit by writing a one to it. |
| PWMIF1 | PWM channel 1 Interrupt Status Flag is set by hardware when PWM1 down counter reaches zero, software can clear this bit by writing a one to it. |
| PWMIF2 | PWM channel 2 Interrupt Status Flag is set by hardware when PWM2 down counter reaches zero, software can clear this bit by writing a one to it. |
| PWMIF3 | PWM channel 3 Interrupt Status Flag is set by hardware when PWM3 down counter reaches zero, software can clear this bit by writing a one to it. |