23.5.9 Event Control
| Name: | EVCTRL |
| Offset: | 0x09 |
| Reset: | 0x00 |
| Property: | - |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| EVACTB[2:0] | CNTBEI | EVACTA[2:0] | CNTAEI | ||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
Bits 7:5 – EVACTB[2:0] Event Action B
These bits define what action the counter will take upon certain event conditions.
| Value | Name | Description |
|---|---|---|
| 0x0 | NONE | No action |
| 0x1 | - | Reserved |
| 0x2 | - | Reserved |
| 0x3 | UPDOWN | Counts the prescaled clock cycles or counts the matching events according to the setting for event input A. The event signal controls the count direction, up when low and down when high. The direction is latched when the counter counts. |
| 0x4 | RESTART_POSEDGE | Restart counter on positive event edge |
| 0x5 | RESTART_ANYEDGE | Restart counter on any event edge |
| 0x6 | RESTART_HIGHLVL | Restart counter while the event signal is high |
| Other | - | Reserved |
Bit 4 – CNTBEI Enable Counter Event Input B
| Value | Description |
|---|---|
| 0 | Counter Event input B is disabled |
| 1 | Counter Event input B is enabled according to EVACTB bit field |
Bits 3:1 – EVACTA[2:0] Event Action A
These bits define what action the counter will take upon certain event conditions.
| Value | Name | Description |
|---|---|---|
| 0x0 | CNT_POSEDGE | Count on positive event edge |
| 0x1 | CNT_ANYEDGE | Count on any event edge |
| 0x2 | CNT_HIGHLVL | Count prescaled clock cycles while the event signal is high |
| 0x3 | UPDOWN | Count prescaled clock cycles. The event signal controls the count direction, up when low and down when high. The direction is latched when the counter counts. |
| Other | Reserved |
Bit 0 – CNTAEI Enable Counter Event Input A
| Value | Description |
|---|---|
| 0 | Counter Event input A is disabled |
| 1 | Counter Event input A is enabled according to EVACTA bit field |