12th Generation Intel® Core™ Processors Datasheet Volume 2 of 2
| ID | Date | Version | Classification |
|---|---|---|---|
| 767625 | 07/13/2023 | Public |
ACT Command Timing (TC_ACT_0_0_0_MCHBAR) – Offset E008
DDR timing constraints related to ACT commands
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31:24 | 0x18 | RW | tREFSBRD Timing (trefsbrd) Enforces minimum delay from refsb to ACT. Specified in tCK |
| 23:22 | 0h | RO | Reserved |
| 21:15 | 0x4 | RW | tRRD Different Group (tRRD_dg) Holds DDR timing parameter tRRD. |
| 14:9 | 0x4 | RW | tRRD Same Group (tRRD_sg) Holds DDR timing parameter tRRD/tRRD_L. |
| 8:0 | 0x10 | RW | tFAW Timing Parameter (tFAW) Holds DDR timing parameter tFAW (four activates window). In tCK (WCK for LPDDR5) cycles |