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 TCB.CTRLB.
Count Mode | EDGE | Positive Edge | Negative Edge |
---|---|---|---|
Periodic Interrupt Mode | 0 | Not Applicable | Not Applicable |
1 | Not Applicable | Not Applicable | |
Timeout Check Mode | 0 | Start counter | Stop counter |
1 | Stop counter | Start counter | |
Input Capture on Event Mode | 0 | Input capture frequency and pulse width measurement mode | Not Applicable |
1 | Not Applicable | Capture = count | |
Input Capture Frequency Measurement Mode | 0 | Capture = count, initialize, interrupt | Not Applicable |
1 | Not Applicable | Capture = count, initialize, interrupt | |
Input Capture Pulse Width Measurement Mode | 0 | Initialize | Capture = count, interrupt |
1 | Capture = count, interrupt | Initialize | |
Input Capture Frequency and Pulse Width Measurement Mode | 0 |
On 1st Positive: initialize On following Negative: capture 2nd Positive: stop, interrupt |
|
1 |
On 1st Negative: initialize On following Positive: capture 2nd Negative: stop, interrupt |
||
Single Shot Mode | 0 | Start counter | Not Applicable |
1 | Start counter | Start counter | |
8-bit PWM Mode | 0 | Not Applicable | Not Applicable |
1 | Not Applicable | Not Applicable |
Capture Event Input Enable
Writing this bit to '1' enables the event input capture.