Intel® Core™ Ultra 200H and 200U Series Processors CFG and MEM Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 844345 | 01/29/2025 | 001 | Public |
Inter-Channel Decode Parameters (MAD_INTER_CHANNEL_0_0_0_MCHBAR) – Offset d800
This register holds parameters used by the channel decode stage.
It defines virtual channel L mapping, as well as channel S size.
Also defined is the DDR type installed in the system (what DDR/LPDDR type is used).
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31:29 | 0h | RO | Reserved |
| 28:27 | 0h | RW | Channel Width (CH_WIDTH) This field defines the width of DRAM Channel |
| 26:20 | 0h | RO | Reserved |
| 19:12 | 0h | RW | Channel S Size (CH_S_SIZE) Channel S size in multiplies of 0.5GB . |
| 11:5 | 0h | RO | Reserved |
| 4 | 0h | RW | Channel L Mapping (CH_L_MAP) Channel L mapping to physical channel. |
| 3 | 0h | RO | Reserved |
| 2:0 | 0h | RW | DDR Type (DDR_TYPE) DDR_TYPE - defines the DDR type in system: |