High-End Overlay Interrupt Status Register
| DMA | End of DMA Transfer |
| DSCR | DMA Descriptor Loaded |
| ADD | Head Descriptor Loaded |
| DONE | End of List Detected |
| OVR | Overflow Detected |
| UDMA | End of DMA Transfer for U component |
| UDSCR | DMA Descriptor Loaded for U component |
| UADD | Head Descriptor Loaded for U component |
| UDONE | End of List Detected for U component |
| UOVR | Overflow Detected for U component |
| VDMA | End of DMA Transfer for V component |
| VDSCR | DMA Descriptor Loaded for V component |
| VADD | Head Descriptor Loaded for V component |
| VDONE | End of List Detected for V component |
| VOVR | Overflow Detected for V component |