Data Sheet

377
Atmel | SMART SAM D21 [DATASHEET]
Atmel-42181G–SAM-D21_Datasheet–09/2015
21.8.8 Address
Name: ADDR
Offset: 0x1C
Reset: 0x00000000
Property: Write-Protected
z Bits 31:22 – 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 21:0 – ADDR[21:0]: NVM Address
ADDR drives the hardware (16-bit) address to the NVM when a command is executed using CMDEX. 8-bit
addresses must be shifted one bit to the right before writing to this register.
This register is automatically updated when writing to the page buffer, and can also be manually written. This reg-
ister holds the address offset for the section addressed.
Bit 3130292827262524
AccessRRRRRRRR
Reset00000000
Bit 2322212019181716
ADDR[21:16]
Access R R R/W R/W R/W R/W R/W R/W
Reset00000000
Bit 151413121110 9 8
ADDR[15:8]
AccessR/WR/WR/WR/WR/WR/WR/WR/W
Reset00000000
Bit 76543210
ADDR[7:0]
AccessR/WR/WR/WR/WR/WR/WR/WR/W
Reset00000000