26.6.2 NVM Parameters
This register is reset to 0x00000000 but are populated by values set by
fuses during the boot sequence.
| Name: | PARAM |
| Offset: | 0x08 |
| Reset: | 0x0XXXXXXX |
| Property: | – |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| BOOTPROT[2:0] | |||||||||
| Access | R | R | R | ||||||
| Reset | x | x | x | ||||||
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| PSZ[2:0] | |||||||||
| Access | R | R | R | ||||||
| Reset | x | x | x | ||||||
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| NVMP[15:8] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | x | x | x | x | x | x | x | x | |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| NVMP[7:0] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | x | x | x | x | x | x | x | x | |
Bits 26:24 – BOOTPROT[2:0] Boot Section Size
Indicates the number of bytes protected by the boot section.
| Value | Name | Description |
|---|---|---|
| 0x0 | SIZE_32768BYTES | 32768 bytes are protected |
| 0x1 | SIZE_16384BYTES | 16384 bytes are protected |
| 0x2 | SIZE_8192BYTES | 8192 bytes are protected |
| 0x3 | SIZE_4096BYTES | 4096 bytes are protected |
| 0x4 | SIZE_2048BYTES | 2048 bytes are protected |
| 0x5 | SIZE_1024BYTES | 1024 bytes are protected |
| 0x6 | SIZE_512BYTES | 512 bytes are protected |
| 0x7 | SIZE_0BYTES | 0 bytes are protected (default) |
Bits 18:16 – PSZ[2:0] Page Size
Indicates the page size. Not all devices in a device family will support all the page sizes listed in the table.
| Value | Name | Description |
|---|---|---|
| 0x0 | 8 | 8 bytes |
| 0x1 | 16 | 16 bytes |
| 0x2 | 32 | 32 bytes |
| 0x3 | 64 | 64 bytes |
| 0x4 | 128 | 128 bytes |
| 0x5 | 256 | 256 bytes |
| 0x6 | 512 | 512 bytes |
| 0x7 | 1024 | 1024 bytes |
Bits 15:0 – NVMP[15:0] NVM Parameters
Other NVM parameters are read from fuses and written by the boot ROM.