SAM3X8E Atmel Corporation, SAM3X8E Datasheet - Page 978

• Manufacturer Part Number: SAM3X8E
• Manufacturer: Atmel Corporation

37.14.18 HSMCI Write Protect Mode Register
Name:
Address:
Access:
• WP_EN: Write Protection Enable
0: Disables the Write Protection if WP_KEY corresponds to 0x4D4349 (“MCI’ in ASCII).
1: Enables the Write Protection if WP_KEY corresponds to 0x4D4349 (“MCI’ in ASCII).
• WP_KEY: Write Protection Key password
Should be written at value 0x4D4349 (ASCII code for “MCI”). Writing any other value in this field has no effect.
Protects the registers:
978
978
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“HSMCI Mode Register” on page 953
“HSMCI Data Timeout Register” on page 955
“HSMCI SDCard/SDIO Register” on page 956
“HSMCI Completion Signal Timeout Register” on page 962
“HSMCI DMA Configuration Register” on page 976
“HSMCI Configuration Register” on page 977
31
23
15
7
SAM3X/A
SAM3X/A
HSMCI_WPMR
0x400000E4
Read-write
30
22
14
6
29
21
13
5
WP_KEY (0x4D => “M”)
WP_KEY (0x43 => C”)
WP_KEY (0x49 => “I”)
28
20
12
4
27
19
11
3
26
18
10
2
25
17
9
1
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12
WP_EN
24
16
8
0