SAM3X8E Atmel Corporation, SAM3X8E Datasheet - Page 263

• Manufacturer Part Number: SAM3X8E
• Manufacturer: Atmel Corporation

15.6.13
Name:
Address:
Access:
• WPEN: Write Protect Enable
0: Disables the Write Protect if WPKEY corresponds to 0x525443 (“RTC” in ASCII).
1: Enables the Write Protect if WPKEY corresponds to 0x525443 (“RTC” in ASCII).
Protects the registers:
“RTC Mode Register” on page 252
“RTC Time Alarm Register” on page 255
“RTC Calendar Alarm Register” on page 256
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12
31
23
15
—
7
RTC Write Protect Mode Register
RTC_WPMR
0x400E1B44
30
22
14
—
Read-write
6
29
21
13
—
5
28
20
12
—
4
WPKEY
WPKEY
WPKEY
27
19
11
—
3
26
18
10
—
2
25
17
—
9
1
SAM3X/A
SAM3X/A
WPEN
24
16
8
0
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