Datasheet

Table 10-3. RWW Section Parameters (Device Variants B, C, D,and L)
Device
(1)
Flash size Number of pages Page size
SAMD21x17 4 Kbytes 64 64 bytes
SAMD21x16 2 Kbytes 32 64 bytes
SAMD21x15 1 Kbytes 16 64 bytes
Note:
1. x = G, J, or E.
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22.8.3 PARAM
3. Ordering Information(1)
10.3 NVM Calibration and Auxiliary Space
The device calibration data are stored in different sections of the NVM calibration and auxiliary space
presented in the following figure.
Figure 10-1. Calibration and Auxiliary Space
0x00800000
AUX0 offset address
Automatic calibration
row
Calibration and auxiliary
space address offset
AUX0 – NVM User
Row
AUX1
0x00804000
0x00806000
AUX1 offset address
0x00806000
Area 3 offset address
Area 1: Reserved (64 bits)
Area 2: Device configuration
area (64 bits)
Area 1 address offset
Area 2 offset address
Area 3: Reserved
(128bits)
Area 4: Software
calibration area (256bits)
0x00806008
0x00806010
0x00806020
Area 4 offset address
AUX1
0x00806040
0x00000000
NVM base address
+ NVM size
NVM main address
space
NVM Base Address
Calibration and
auxiliary space
0x00800000
NVM base address +
0x00800000
The values from the automatic calibration row are loaded into their respective registers at startup.
10.3.1 NVM User Row Mapping
The first two 32-bit words of the NVM User Row contain calibration data that are automatically read at
device power on.
The NVM User Row can be read at address 0x804000.
SAM D21 Family
Memories
© 2018 Microchip Technology Inc.
Datasheet Complete
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