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Figure 9-3. Memory with ECC and CoreSight ETB
Error Correction
SAME54x20
SAME54x19
0x20000000
0KB
32KB
192KB
256KB
Error Correction
128KB
96KB
CoreSight ETB
CoreSight ETB
9.4 NVM User Page Mapping
The NVM User Page can be read at address 0x00804000. The size of the NVM User Page is 512 Bytes.
The first eight 32-bit words (32 Bytes) of the Non Volatile Memory (NVM) User Page contain calibration
data that are automatically read at device power on. The remaining 480 Bytes can be used for storing
custom parameters.
To write the NVM User Page, refer to the NVMCTRL (Non-Volatile Memory Controller) documentation.
When writing to the user pages, the new values do not get loaded by the other peripheral on the device
until a device reset occurs.
Note:  Before erasing the NVM User Page, ensure that the first 32 Bytes are read to a buffer and later
written back to the same area unless a configuration change is intended.
Table 9-2. NVM User Page Mapping - Dedicated Entries
Bit Pos. Name Usage Related Peripheral
Register
Default
Values
0 BOD33 Disable BOD33 Disable at power-on. SUPC.BOD33 0x1
8:1 BOD33 Level BOD33 threshold level at power-
on.
SUPC.BOD33 0x1C
10:9 BOD33 Action BOD33 Action at power-on. SUPC.BOD33 0x1
14:11 BOD33 Hysteresis BOD33 Hysteresis configuration
at power-on.
SUPC.BOD33 0x2
SAM D5x/E5x Family Data Sheet
Memories
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 57