28.6.5 NVM User Configuration
The NVM user configuration resides in the auxiliary space. Refer to the Physical Memory Map of the device for calibration and auxiliary space address mapping.
The bootloader resides in the main array starting at offset zero. The allocated boot loader section is write-protected.
| BOOTPROT [2:0] | Rows Protected by BOOTPROT | Boot Loader Size in Bytes |
|---|---|---|
| 0x7(1) | None | 0 |
| 0x6 | 2 | 512 |
| 0x5 | 4 | 1024 |
| 0x4 | 8 | 2048 |
| 0x3 | 16 | 4096 |
| 0x2 | 32 | 8192 |
| 0x1 | 64 | 16384 |
| 0x0 | 128 | 32768 |
Note:
- Default value is 0x7, except for WLCSP packages (default value 0x3).
The EEPROM[2:0] bits indicate the EEPROM size, see the table below. The EEPROM resides in the upper rows of the NVM main address space and is writable, regardless of the region lock status.
| EEPROM[2:0] | Rows Allocated to EEPROM | EEPROM Size in Bytes |
|---|---|---|
| 7 | None | 0 |
| 6 | 1 | 256 |
| 5 | 2 | 512 |
| 4 | 4 | 1024 |
| 3 | 8 | 2048 |
| 2 | 16 | 4096 |
| 1 | 32 | 8192 |
| 0 | 64 | 16384 |
References: