Atmel Xplained Pro Evaluation Kit ATSAM4E-XPRO ATSAM4E-XPRO Data Sheet
Product codes
ATSAM4E-XPRO
SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
698
33.9.12 CAN Write Protection Mode Register
Name:
CAN_WPMR
Address:
0x400100E4 (0), 0x400140E4 (1)
Access:
Read-write
WPEN: Write Protection Enable
0: The Write Protection is Disabled if WPKEY is written with 0x43414E (“CAN” written in ASCII)
1: The Write Protection is Enabled if WPKEY is written with0x43414E (“CAN” written in ASCII)
Protects the registers:
WPKEY: SPI Write Protection Key Password.
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
WPKEY
7
6
5
4
3
2
1
0
–
–
–
–
–
–
–
WPEN
Value
Name
Description
0x43414E
PASSWD
Writing any other value in this field aborts the write operation of the WPEN bit.
Always reads as 0