| Term | Definition |
|---|
| How do you enable OC? | Set corresponding bit in TIOS to 1 |
| What sets a flag? | If TCNT = TCi ( TCi is set to the time to interrupt next ) |
| How do you arm an interrupt? | Set CiI to 1 in TIE |
| How do you Acknowledge an interrupt? | Clear CiF in TFLG1 by setting to 1 |
| What 7 things must be done by OC Init? | Disable interrupts, Enable TCNT, Enable OC, Arm OC, Set first interrupt time, Clear flag, enable interrupts |
| What is the first thing to be done by OC init? | Disable interrupts ( sei ) |
| What is the second thing to be done by OC init? | Enable TCNT ( TEN = 1) |
| What is the third thing to be done by OC init? | Enable OC ( set bit of TIOS ) |
| What is the fourth thing to be done by OC init? | Arm OC ( set bit of TIE ) |
| What is the fifth thing to be done by OC init? | Set first interrupt time ( TCNT = TCNT + period ) |
| What is the sixth thing to be done by OC init? | Clear Flag ( set bit of TSCR2 ) |
| What is the last thing to be done by OC init? | Re-enable interrupts ( cli ) |
| What 2 things must be done by OC handler? | Acknowledge and set next time to interrupt |
Combine with other sets
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