Event Control
Bit7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
FILTER | EDGE | CAPTEI | |||||
Access | R/W | R/W | R/W | ||||
Reset | 0 | 0 | 0 |
Input Capture Noise Cancellation Filter
Writing this bit to '1' enables the input capture noise cancellation unit.
Event Edge
This bit is used to select the event edge. The effect of this bit is dependent on the selected Count Mode (CNTMODE) in TCBn.CTRLB. "-" means that an event or edge has no effect in this mode.
Count Mode | EDGE | Positive Edge | Negative Edge |
---|---|---|---|
Periodic Interrupt mode | 0 | - | - |
1 | - | - | |
Timeout Check mode | 0 | Start counter | Stop counter |
1 | Stop counter | Start counter | |
Input Capture on Event mode | 0 | Input Capture, interrupt | - |
1 | - | Input Capture, interrupt | |
Input Capture Frequency Measurement mode | 0 | Input Capture, clear and restart counter, interrupt | - |
1 | - | Input Capture, clear and restart counter, interrupt | |
Input Capture Pulse-Width Measurement mode | 0 | Clear and restart counter | Input Capture, interrupt |
1 | Input Capture, interrupt | Clear and restart counter | |
Input Capture Frequency and Pulse-Width Measurement mode | 0 |
On 1st Positive: Clear and restart counter On following Negative: Input Capture 2nd Positive: Stop counter, interrupt |
|
1 |
On 1st Negative: Clear and restart counter On following Positive: Input Capture 2nd Negative: Stop counter, interrupt |
||
Single-Shot mode | 0 | Start counter | - |
1 | Start counter | Start counter | |
8-Bit PWM mode | 0 | - | - |
1 | - | - |
Capture Event Input Enable
Writing this bit to '1' enables the input capture event.