Intel® Core™ Ultra 200V Series Processors SOC I/O Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 831520 | 09/03/2024 | 001 | Public |
Output Stream Descriptor x Status (OSD0STS) – Offset 1e3
This register provides the status of the output stream DMA.
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 7:6 | 0h | RO | Reserved (Zero) (RSVD7) SW must use zeros for writes. |
| 5 | 0h | RO/V | FIFO Ready (FIFORDY) This bit defaults to 0 on reset because the FIFO is cleared on a reset. |
| 4 | 0h | RW/1C | Descriptor Error (DESE) Indicates that a serious error occurred during the fetch of a descriptor. This could be a result of a Initiator Abort, a Parity or ECC error on the bus, or any other error which renders the current Buffer Descriptor or Buffer Descriptor List useless. This error is treated as a fatal stream error, as the stream cannot continue running. The RUN bit will be cleared and the stream will stop. Software may attempt to restart the stream engine after addressing the cause of the error and writing a '1' to this bit to clear it. |
| 3 | 0h | RW/1C | FIFO Error (FIFOE) Set when a FIFO error occurs. Bit is cleared by writing a 1 to this bit position. This bit is set even if an interrupt is not enabled. |
| 2 | 0h | RW/1C | Buffer Completion Interrupt Status (BCIS) This bit is set to 1 by the hardware after the last sample of a buffer has been processed, AND if the Interrupt on Completion (IOC) bit is set in the command byte of the buffer descriptor. It remains active until software clears it by writing a 1 to this bit position. |
| 1:0 | 0h | RO | Reserved (Zero) (RSVD1) SW must use zeros for writes. |