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 |
I2C PCI Configuration (D21:F0/1/2/3; D25:F0/1) Registers
The registers in this section apply to the following I2C controllers:
I2C Controller 0 at Device21:Function0
I2C Controller 1 at Device21:Function1
I2C Controller 2 at Device21:Function2
I2C Controller 3 at Device21:Function3
I2C Controller 4 at Device25:Function0
I2C Controller 5 at Device25:Function1
| Offset | Size (Bytes) | Register Name (Register Symbol) | Scope | Default Value |
|---|---|---|---|---|
| 0h | 4 | Package | XXXX8086h | |
| 4h | 4 | Package | 00100000h | |
| 8h | 4 | Package | 0C8000XXh | |
| ch | 4 | Package | 00800000h | |
| 10h | 4 | Package | 00000000h | |
| 14h | 4 | Package | 00000000h | |
| 18h | 4 | Package | 00000004h | |
| 1ch | 4 | Package | 00000000h | |
| 2ch | 4 | Package | 00000000h | |
| 30h | 4 | Package | 00000000h | |
| 34h | 4 | Package | 00000080h | |
| 3ch | 4 | Package | 00000000h | |
| 80h | 4 | Package | 00039001h | |
| 84h | 4 | Power Management Control And Status Register (PMECTRLSTATUS) | Package | 00000008h |
| 90h | 4 | Pci Device Idle Vendor Capability Register (PCIDEVIDLE_CAP_RECORD) | Package | F0140009h |
| 94h | 4 | Vendor Specific Extended Capability Register (DEVID_VEND_SPECIFIC_REG) | Package | 01400010h |
| 98h | 4 | Software Ltr Update Mmio Location Register (D0I3_CONTROL_SW_LTR_MMIO_REG) | Package | 00002101h |
| 9ch | 4 | Package | 000024C1h | |
| a0h | 4 | D0i3 And Power Control Enable Register (D0I3_MAX_POW_LAT_PG_CONFIG) | Package | 000F0800h |
| b0h | 4 | Package | 00000000h | |
| b4h | 4 | Package | 00000000h | |
| b8h | 4 | Package | 00000000h | |
| bch | 4 | Package | 00000000h | |
| c0h | 4 | Package | 00000000h |