Intel® Core™ Ultra Processors for H-series and U-series Platforms CFG and MEM Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 795258 | 12/14/2023 | Public |
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TSEG Memory Base (TSEGMB_0_0_0_PCI) – Offset b8
This register contains the base address of TSEG DRAM memory. BIOS determines the base of TSEG memory which must be at or below Graphics Base of GTT Stolen Memory (PCI Device 0 Offset B4 bits 31:20).
NOTE: BIOS must program TSEGMB to a 8MB naturally aligned boundary.
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31:20 | 0h | RW/L | (TSEGMB) This register contains the base address of TSEG DRAM memory. BIOS determines the base of TSEG memory which must be at or below Graphics Base of GTT Stolen Memory (PCI Device 0 Offset B4 bits 31:20). BIOS must program the value of TSEGMB to be the same as BGSM when TSEG is disabled. |
| 19:1 | 0h | RO | Reserved |
| 0 | 0h | RW/L | (LOCK) This bit will lock all writable settings in this register, including itself. |