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 |
Ports Implemented (GHC_PI) – Offset c
This register indicates which ports are exposed to the HBA. It is loaded by platform BIOS. It indicates which ports that the device supports are available for software to use.
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31:2 | 0h | RO | Reserved |
| 1 | 0h | RW/O/V | Port 1 Implemented (PI1) If set, then port 1 is available for use. If cleared, the port is not available for use. This bit is reserved and is read-only 0 if below condition is true else it's RWO-zero: Refer to CAP.NP where port 1 is not available. |
| 0 | 0h | RW/O/V | Port 0 Implemented (PI0) If set, then port 0 is available for use. If cleared, the port is not available for use. This bit is reserved and is read-only 0 if below condition is true else it's RWO-zero: Refer to CAP.NP where port 0 is not available. |