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 |
REG SPI_CS_CONTROL (SPI_CS_CONTROL) – Offset 224
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31:16 | 0h | RO | Reserved |
| 15 | 1h | RW | cs3_polarity (cs3_polarity) This Bit selects the Inactive/Idle polarity of SPI CS3 Signal. The steering logic will ensure |
| 14 | 1h | RW | cs2_polarity (cs2_polarity) This Bit selects the Inactive/Idle polarity of SPI CS2 Signal. The steering logic will ensure |
| 13 | 1h | RW | cs1_polarity (cs1_polarity) This Bit selects the Inactive/Idle polarity of SPI CS1 Signal. The steering logic will ensure |
| 12 | 1h | RW | cs0_polarity (cs0_polarity) This Bit selects the Inactive/Idle polarity of SPI CS0 Signal. The steering logic will ensure |
| 11:10 | 0h | RO | Reserved |
| 9:8 | 0h | RW | cs1_output_sel (cs1_output_sel) These Bits select which SPI CS Signal is to be driven by the SSP Frame (CS). |
| 7:2 | 0h | RO | Reserved |
| 1 | 0h | RW | cs_state (cs_state) Manual SW control of SPI Chip Select (CS) |
| 0 | 0h | RW | cs_mode (cs_mode) SPI Chip Select Mode Section. |