Data Sheet

370
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
21.8.3 NVM Parameter
Name: PARAM
Offset: 0x08
Reset: 0x000XXXXX
Property: -
z Bits 31:20 – RWWEEP[12:0]: Read While Write EEPROM emulation area Pages
Indicates the number of pages in the RWW EEPROM emulation address space.
Note: These bits are only available in Device Variant B. In Device Variant A these bits are reserved.
z Bit 19 – Reserved
This bit is unused and reserved for future use. For compatibility with future devices, always write this bit to zero
when this register is written. This bit will always return zero when read.
z Bits 31:19 – Reserved
These bits are unused and reserved for future use. For compatibility with future devices, always write these bits to
zero when this register is written. These bits will always return zero when read.
z Bits 18:16 – PSZ[2:0]: Page Size
Indicates the page size. Not all device families will provide all the page sizes indicated in the table.
Bit 3130292827262524
RWWEEP[12:4]
AccessRRRRRRRR
Reset00000000
Bit 2322212019181716
PSZ[2:0]
RWWEEP[3:0]
PSZ[2:0]
AccessRRRRRRRR
Reset00000XXX
Bit 151413121110 9 8
NVMP[15:8]
AccessRRRRRRRR
ResetXXXXXXXX
Bit 76543210
NVMP[7:0]
AccessRRRRRRRR
ResetXXXXXXXX