25.10.3 Channel Event Control Register
| 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: | CHEVCTRLk |
| Offset: | 0x58 + k*0x50 [k=0..15] |
| Reset: | 0x00000000 |
| Property: | PAC Write-Protection, CHCTRLAk.ENABLE =1 write protect |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| Access | |||||||||
| Reset |
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| Access | |||||||||
| Reset |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| Access | |||||||||
| Reset |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| EVOE | EVSTRIE | EVAUXIE | EVOMODE[1:0] | EVAUXACT[1:0] | |||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | ||
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
Bit 7 – EVOE Channel Event Output Enable
This bit indicates if the Channel event generation is enabled. The event will be generated for every condition defined in the Channel Event Output Mode bits (CHEVCTRLk.EVOMODE).
| Value | Description |
|---|---|
| 0 | Channel event generation is enabled |
| 1 | Channel event generation is enabled |
Bit 6 – EVSTRIE Channel Start Event Input Enable
| Value | Description |
|---|---|
| 0 | Channel event start action is disabled. |
| 1 | Channel event start action is enabled. See CHCTRLBk.TRIG for details on configuring the channel to use start event as a trigger. |
Bit 5 – EVAUXIE Channel Auxiliary Event Enable
| Value | Description |
|---|---|
| 0 | Channel event auxiliary action is disabled |
| 1 | Channel event auxiliary action is enabled |
Bits 3:2 – EVOMODE[1:0] Channel Event Output Mode
This field sets when a output trigger event occurs. Output is always active high.
| Value | Description |
|---|---|
| 11 | Ongoing trigger action from the start event trigger to the completion of a cell transfer reads |
| 10 | Ongoing trigger action from the start event trigger to the completion of a cell transfer writes |
| 01 | Generate 1 clock cycle strobe at the end of a cell transfer |
| 00 | Generate 1 clock cycle strobe at the end of a block transfer |
Bits 1:0 – EVAUXACT[1:0] Channel Auxiliary Event Input Action
| Value | Description |
|---|---|
| 11 | Abort linked list operation and block transfer on the rising edge of the input event |
| 10 | Conditional Trigger, active high level event |
| 01 | Increment channel priority on the rising edge of the input event |
| 00 | Abort block transfer on the rising edge of the input event |