Datasheet

989
SAM9G25 [DATASHEET]
11032C–ATARM–25-Jan-13
44.5.24 ISI Write Protection Control
Name: ISI_WPCR
Address: 0xF80480E4
Access: Read-write
• 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.
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”)
76543210
WP_EN