SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
A Change Channel Interrupt Source descriptor uses the source field to select a channel to modify the attached clients interrupt generation event. The list will not stall on this descriptor. The format of the fields is identical to the Sync on Client Descriptor. Word 0 is reserved.
Bits | Name | Description |
---|---|---|
31:16 | PIXEL_COUNT | Specify the pixel position on a line specified by LINE_COUNT where a pixel based event would occur. |
15:0 | LINE_COUNT | Specify the line where a line based event would trigger. |
Bits | Name | Description |
---|---|---|
31:4 | Reserved | Reserved |
3:0 | Event | Specify the event which should trigger the client interrupt. |
Bits | Name | Description |
---|---|---|
31:27 | Packet Type | Host Packet Descriptor Type = Ch |
26:24 | Reserved | Reserved |
23:16 | Source | Specifies the source used for the control event. |
15:4 | Reserved | Reserved for future use |
3:0 | Control | Control type = 5h |