Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Data Sheet
Product codes
AT91SAM9N12-EK
107
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
13.4
Boot Sequence Controller (BSC) Registers User Interface
13.4.1 Boot Sequence Configuration Register
Name:
BSC_CR
Address:
0xFFFFFE54
Access:
Read-write
Factory Value: 0x0000_0000
• BOOT: Boot Media Sequence
This value is defined in the product-dependent ROM code. It is only written if WPKEY carries the valid value.
•
WPKEY: Write Protect Key (Write-only)
Table 13-1. Register Mapping
Offset
Register
Name
Access
Reset
0x0
Boot Sequence Configuration Register
BSC_CR
Read-write
–
31
30
29
28
27
26
25
24
WPKEY
23
22
21
20
19
18
17
16
WPKEY
15
14
13
12
11
10
9
8
–
–
–
–
–
–
–
–
7
6
5
4
3
2
1
0
BOOT
Value
Name
Description
0x6683
PASSWD
Writing any other value in this field aborts the write operation of the BOOT field.
Always reads as 0.