Intel® Core™ Ultra 200H and 200U Series Processors CFG and MEM Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 844345 | 01/29/2025 | 001 | Public |
RD to WR Timings (TC_RDWR_0_0_0_MCHBAR) – Offset e010
DDR timing constraints related to timing between read and write transactions
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31:24 | 4h | RW | Read to Write Different DIMM Delay - tRDWR_dd (tRDWR_dd) Minimum delay from RD to WR to the other DIMM in tCK (WCK for LPDDR5) cycles. |
| 23:16 | 4h | RW | Read to Write Different Rank Delay - tRDWR_dr (tRDWR_dr) Minimum delay from RD to WR to the other rank in the same DIMM in tCK (WCK for LPDDR5) cycles. |
| 15:8 | 4h | RW | Read to Write Different Bank Group Delay - tRDWR_dg (tRDWR_dg) LPDDR4/LPDDR5: Minimum delay from RD to WR to different banks in tCK (WCK for LPDDR5) cycles. |
| 7:0 | 4h | RW | Read to Write Same Bank Group Delay - tRDWR_sg (tRDWR_sg) LPDDR4/LPDDR5: Minimum delay from RD to WR to the same bank in tCK (WCK for LPDDR5) cycles. |