Datasheet

...........continued
Offset Name Bit Pos.
0x1FFC CID3
7:0 PREAMBLEB3[7:0]
15:8
23:16
31:24
13.13 Register Description
Registers can be 8, 16, or 32 bits wide. Atomic 8-, 16- and 32-bit accesses are supported. In addition, the
8-bit quarters and 16-bit halves of a 32-bit register, and the 8-bit halves of a 16-bit register can be
accessed directly.
Some registers are optionally write-protected by the Peripheral Access Controller (PAC). Optional PAC
write-protection is denoted by the "PAC Write-Protection" property in each individual register description.
For details, refer to 13.5.7 Register Access Protection.
SAM D21 Family
DSU - Device Service Unit
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 86