12th Generation Intel® Core™ Processors Datasheet Volume 2 of 2
ID | Date | Version | Classification |
---|---|---|---|
767625 | 07/13/2023 | Public |
Refresh Parameters (TC_RFP_0_0_0_MCHBAR) – Offset E438
Refresh parameters
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
31:24 | 0x23 | RW | tREFI x9 (tREFIx9) Maximum time allowed between refreshes to a rank (in intervals of 1024 DCLK cycles). |
23:20 | 0x5 | RW | Raise Block Wait (RAISE_BLK_WAIT) Number of clocks the Main refresh FSM blocks the rank and waits before it progresses to any mantainance operations. |
19:18 | 0x1 | RW | Self Refresh Exit - Refresh Debits (SRX_Ref_Debits) Number of Refresh debits to be given on Self refresh exit. |
17 | 0x1 | RW | High Priority Referesh on MRS (HPRefOnMRS) Setting this bit will enable MRS refresh at the beginning of MRS flow if the rank reached High Priority refresh WM. |
16 | 0x0 | RW | Enable tREFI Counter While MC Refresh Enable is not Set (CounttREFIWhileRefEnOff) Setting this bit will enable tREFI counter while MC refresh enable is not set. |
15:12 | 0x9 | RW | Refresh Panic Threshold (Refresh_panic_wm) tREFI count level in which the refresh priority is panic (default is 9). |
11:8 | 0x8 | RW | Refresh Priority Threshold (Refresh_HP_WM) tREFI count level that turns the refresh priority to high (default is 8) |
7:0 | 0xF | RW | Rank Idle (OREF_RI) Rank idle period that defines an opportunity for refresh, in DCLK cycles |