Intel® Core™ Ultra 200H and 200U Series Processors CFG and MEM Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 844345 | 01/29/2025 | 001 | Public |
ODT Matrix (SC_ODT_MATRIX_0_0_0_MCHBAR) – Offset e080
ODT matrix (enabled using SC_GS_CFG_0_0_0_MCHBAR.enable_odt_matrix
Note: In DDR5 this matrix should only be used for non target ODT (target ODT should not be specified in this register)
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31:28 | 0h | RW | Write Rank 3 (Write_Rank_3) Indicate which ranks should terminate when writing to rank 3 (bits 3:0 correspond to ODT pins 3:0). |
| 27:24 | 0h | RW | Write Rank 2 (Write_Rank_2) Indicate which ranks should terminate when writing to rank 2 (bits 3:0 correspond to ODT pins 3:0). |
| 23:20 | 0h | RW | Write Rank 1 (Write_Rank_1) Indicate which ranks should terminate when writing to rank 1 (bits 3:0 correspond to ODT pins 3:0). |
| 19:16 | 0h | RW | Write Rank 0 (Write_Rank_0) Indicate which ranks should terminate when writing to rank 0 (bits 3:0 correspond to ODT pins 3:0). |
| 15:12 | 0h | RW | Read Rank 3 (Read_Rank_3) Indicate which ranks should terminate when reading from rank 3 (bits 3:0 correspond to ODT pins 3:0) |
| 11:8 | 0h | RW | Read Rank 2 (Read_Rank_2) Indicate which ranks should terminate when reading from rank 2 (bits 3:0 correspond to ODT pins 3:0) |
| 7:4 | 0h | RW | Read Rank 1 (Read_Rank_1) Indicate which ranks should terminate when reading from rank 1 (bits 3:0 correspond to ODT pins 3:0) |
| 3:0 | 0h | RW | Read Rank 0 (Read_Rank_0) Indicate which ranks should terminate when reading from rank 0 (bits 3:0 correspond to ODT pins 3:0) |