SAM9G46_14 Datasheet, PDF (950/1286 Pages) ATMEL Corporation – Atmel | SMART ARM-based Embedded MPU

39.5.24 ISI Write Protection Control
Register Name:
ISI_WPCR
Access Type: Read
-write
31
30
29
28
27
26
WP_KEY (0x49 => “I”)
23
22
21
20
19
18
WP_KEY (0x53 => “S”)
15
14
13
12
11
10
WP_KEY (0x49 => “I”)
7
6
5
4
3
2
25
24
17
16
9
8
1
0
WP_EN
• 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.
950
SAM9G46 Series [DATASHEET]
Atmel-11028F-ATARM-SAM9G46-Datasheet_16-Oct-14