31:24

0h

RW/L

BIOS Master Write Access Grant (BMWAG)

Each bit [31:24] corresponds to Master[7:0]. BIOS can grant one or more masters write access to the BIOS region 1 overriding the permissions in the Flash Descriptor. Bits for unassigned masters are reserved.

23:16

0h

RW/L

BIOS Master Read Access Grant (BMRAG)

Each bit [23:16] corresponds to Master[7:0]. BIOS can grant one or more masters read access to the BIOS region 1 overriding the read permissions in the Flash Descriptor. Bits for unassigned masters are reserved.

15:8

42h

RO/V

BIOS Region Write Access (BRWA)

Each bit [15:8] corresponds to Regions [7:0]. If the bit is set, this master can erase and write that particular region through register accesses. The contents of this register are that of the Flash Descriptor.Flash Master 1.Master Region Write Access OR a particular master has granted BIOS write permissions in their Master Write Access Grant register OR the Flash Descriptor Security Override strap is set.

7:0

c2h

RO/V

BIOS Region Read Access (BRRA)

Each bit [7:0] corresponds to Regions [7:0]. If the bit is set, this master can read that particular region through register accesses. The contents of this register are that of the Flash Descriptor.Flash Master 1.Master Region Read Access OR a particular master has granted BIOS read permissions in their Master Read Access Grant register OR the Flash Descriptor Security Override strap is set.