12th Generation Intel® Core™ Processors Datasheet Volume 2 of 2
| ID | Date | Version | Classification |
|---|---|---|---|
| 767625 | 07/13/2023 | Public |
Roundtrip Latency (SC_Roundtrip_latency_0_0_0_MCHBAR) – Offset E020
Read Round-trip latency per rank
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 63:56 | 0x19 | RW | Rank 7 Latency (Rank_7_latency) Latency from read command to rank 7 until first data chunk return to MC in QCLK cycles |
| 55:48 | 0x19 | RW | Rank 6 Latency (Rank_6_latency) Latency from read command to rank 6 until first data chunk return to MC in QCLK cycles |
| 47:40 | 0x19 | RW | Rank 5 Latency (Rank_5_latency) Latency from read command to rank 5 until first data chunk return to MC in QCLK cycles |
| 39:32 | 0x19 | RW | Rank 4 Latency (Rank_4_latency) Latency from read command to rank 4 until first data chunk return to MC in QCLK cycles |
| 31:24 | 0x19 | RW | Rank 3 Latency (Rank_3_latency) Latency from read command to rank 3 until first data chunk return to MC in QCLK cycles |
| 23:16 | 0x19 | RW | Rank 2 Latency (Rank_2_latency) Latency from read command to rank 2 until first data chunk return to MC in QCLK cycles |
| 15:8 | 0x19 | RW | Rank 1 Latency (Rank_1_latency) Latency from read command to rank 1 until first data chunk return to MC in QCLK cycles |
| 7:0 | 0x19 | RW | Rank 0 Latency (Rank_0_latency) Latency from read command to rank 0 until first data chunk return to MC in QCLK cycles |