Intel® Core™ Ultra 200S and 200HX Series Processors SOC I/O Registers
ID | Date | Version | Classification |
---|---|---|---|
834819 | 01/29/2025 | 001 | Public |
Secondary Flash Region Access Permissions (BIOS_SFRACC) – Offset b0
Secondary Flash Region Access Permissions
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
31:24 | 0h | RW/L | Secondary BIOS Master Write Access Grant (SECONDARYBIOS_MWAG) Each bit [31:29] corresponds to Master[7:0]. BIOS can grant one or more masters write access to the Secondary BIOS region 6 overriding the permissions in the Flash Descriptor. The master numbering is per section 'Flash Descriptor Master' in the SPI Controller HAS. Bits for unassigned masters are reserved. The contents of this register are locked by the FLOCKDN bit. See section 'DLOCK -- Discrete Lock Bits' or a description of how this register is locked. |
23:16 | 0h | RW/L | Secondary BIOS Master Read Access Grant (SECONDARYBIOS_MRAG) Each bit [28:16] corresponds to Master[7:0]. BIOS can grant one or more masters read access to the Secondary BIOS region 6 overriding the read permissions in the Flash Descriptor. The master numbering is per section 'Flash Descriptor Master' in the SPI Controller HAS. Bits for unassigned masters are reserved. The contents of this register are locked by the FLOCKDN bit. See section 'DLOCK -- Discrete Lock Bits' or a description of how this register is locked. |
15:0 | 0h | RO | Reserved (RSVD)
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