SAM9G25_14 Datasheet, PDF (1030/1167 Pages) ATMEL Corporation – Atmel | SMART ARM-based Embedded Microprocessor

44.5.24 ISI Write Protection Control
Name:
Address:
Access:
ISI_WPCR
0xF80480E4
Read-write
31
30
29
28
27
26
25
WP_KEY (0x49 => “I”)
23
22
21
20
19
18
17
WP_KEY (0x53 => “S”)
15
14
13
12
11
10
9
WP_KEY (0x49 => “I”)
7
6
5
4
3
2
1
• WP_EN: 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.
24
16
8
0
WP_EN
11030 SAM9G25 [DATASHEET]
Atmel-11032E-ATARM-SAMG25-Datasheet_13-Oct-14