26.9.7 Event Control
| Symbol | Description | Symbol | Description | Symbol | Description |
|---|---|---|---|---|---|
| R | Readable bit | HC | Cleared by Hardware | (Grey cell) | Unimplemented |
| W | Writable bit | HS | Set by Hardware | X | Bit is unknown at Reset |
| K | Write to clear | S | Software settable bit | — | — |
| Name: | EVCTRL |
| Offset: | 0x0A |
| Reset: | 0x0000 |
| Property: | PAC Write-Protection, Enable-Protected |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| MCEO1 | MCEO0 | OVFEO | |||||||
| Access | R/W | R/W | R/W | ||||||
| Reset | 0 | 0 | 0 |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| TCEI | TCINV | EVACT[2:0] | |||||||
| Access | R/W | R/W | R/W | R/W | R/W | ||||
| Reset | 0 | 0 | 0 | 0 | 0 | ||||
Bits 12, 13 – MCEOx Match or Capture Channel x Event Output Enable [x = 1..0]
These bits enable the generation of an event for every match or capture on channel x.
| Value | Description |
|---|---|
| 0 | Match/Capture event on channel x is disabled and will not be generated. |
| 1 | Match/Capture event on channel x is enabled and will be generated for every compare/capture. |
Bit 8 – OVFEO Overflow/Underflow Event Output Enable
This bit enables the Overflow/Underflow event. When enabled, an event will be generated when the counter overflows/underflows.
| Value | Description |
|---|---|
| 0 | Overflow/Underflow event is disabled and will not be generated. |
| 1 | Overflow/Underflow event is enabled and will be generated for every counter overflow/underflow. |
Bit 5 – TCEI TC Event Enable
This bit is used to enable asynchronous input events to the TC.
| Value | Description |
|---|---|
| 0 | Incoming events are disabled. |
| 1 | Incoming events are enabled. |
Bit 4 – TCINV TC Inverted Event Input Polarity
This bit inverts the asynchronous input event source.
| Value | Description |
|---|---|
| 0 | Input event source is not inverted. |
| 1 | Input event source is inverted. |
Bits 2:0 – EVACT[2:0] Event Action
These bits define the event action the TC will perform on an event.
| Value | Name | Description |
|---|---|---|
| 0x0 | OFF | Event action disabled |
| 0x1 | RETRIGGER | Start, restart or retrigger TC on event |
| 0x2 | COUNT | Count on event |
| 0x3 | START | Start TC on event |
| 0x4 | ||
| 0x5 | PPW | Period captured in CC0, pulse width in CC1 |
| 0x6 | PWP | Period captured in CC1, pulse width in CC0 |
| 0x7 |