Intel® Core™ Ultra Processors for H-series and U-series Platforms SOC I/O Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 795260 | 12/14/2023 | 001 | Public |
Output Stream Descriptor x Control (OSD0CTL_B2) – Offset 1c2
This register provides the control of the output stream DMA.
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 7:4 | 0h | RW | Stream Number (STRM) This value reflects the Tag associated with the data being transferred on the link.0000=Reserved (Indicates Unused)0001=Stream 11110=Stream 141111=Stream 15When data controlled by this descriptor is sent out over the link, it will have this stream number encoded on the SYNC signal. |
| 3 | 0h | RO | Bidirectional Direction Control (DIR) This bit is only meaningful for Bidirectional streams. Therefore this bit is hardwired to 0. |
| 2 | 1h | RO | Traffic Priority (TP) Hardwired to 1 indicating that all streams will use VC1 if it is enabled throughout the PCI Express registers. |
| 1:0 | 0h | RO | Stripe Control (STRIPE) For output streams it controls the number of SDO signals to stripe data across. |