Atmel Evaluation Kit AT91SAM9M10-G45-EK AT91SAM9M10-G45-EK データシート
製品コード
AT91SAM9M10-G45-EK
891
SAM9M10 [DATASHEET]
6355F–ATARM–12-Mar-13
39.5.24
ISI Write Protection Control
Name:
ISI_WPCR
Access:
Read-write
• WP_PEN: Write Protection Enable
0 = Disables the Write Protection if WP_KEY corresponds.
1 = Enables the Write Protection if WP_KEY corresponds.
• WP_KEY: Write Protection KEY Password
Should be written at value
0x495349
(ASCII code for “ISI”). Writing any other value in this field has no effect.
31
30
29
28
27
26
25
24
WP_KEY (0x49 => “I”)
23
22
21
20
19
18
17
16
WP_KEY (0x53 => “S”)
15
14
13
12
11
10
9
8
WP_KEY (0x49 => “I”)
7
6
5
4
3
2
1
0
WP_EN