Atmel SAM4L Xplained Pro Evaluation Kit Atmel ATSAM4L-XPRO ATSAM4L-XPRO Data Sheet
Product codes
ATSAM4L-XPRO
952
42023E–SAM–07/2013
ATSAM4L8/L4/L2
35.4.1
Control Register
Name:
CR
Access Type: Write-only
Offset: 0x00
Reset Value:
–
• KEY: Security Key
KEY = 0x524e47 (RNG in ASCII)
This field must be written to 0x524E47 for a write operation to be effective.
• ENABLE: Enables the TRNG to provide random values
Writing a zero to this bit disables the TRNG.
Writing a one to this bit enables the TRNG.
31
30
29
28
27
26
25
24
KEY
23
22
21
20
19
18
17
16
KEY
15
14
13
12
11
10
9
8
KEY
7
6
5
4
3
2
1
0
–
–
–
–
–
–
–
ENABLE