Event Control

Name:
EVCTRL
Offset:
0x04
Reset:
0x00
Access:
-
Bit76543210
FILTEREDGECAPTEI
AccessR/WR/WR/W
Reset000

Bit 6 – FILTER: Input Capture Noise Cancellation Filter

Input Capture Noise Cancellation Filter

Writing this bit to '1' enables the input capture noise cancellation unit.

Bit 4 – EDGE: Event Edge

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 - -

Bit 0 – CAPTEI: Capture Event Input Enable

Capture Event Input Enable

Writing this bit to '1' enables the input capture event.