SAM3N0A Atmel Corporation, SAM3N0A Datasheet - Page 577

• Manufacturer Part Number: SAM3N0A
• Manufacturer: Atmel Corporation

30.8.15
Name:
Addresses: 0x400240E4 (0), 0x400280E4 (1)
Access:
Reset:
• WPEN: Write Protect Enable
0 = Disables the Write Protect if WPKEY corresponds to 0x555341 (“USA” in ASCII).
1 = Enables the Write Protect if WPKEY corresponds to 0x555341 (“USA” in ASCII).
Protects the registers:
• WPKEY: Write Protect KEY
Should be written at value 0x555341 (“USA” in ASCII). Writing any other value in this field aborts the write operation of the
WPEN bit. Always reads as 0.
11011A–ATARM–04-Oct-10
11011A–ATARM–04-Oct-10
•
•
•
•
•
•
“USART Mode Register” on page 561
“USART Baud Rate Generator Register” on page 571
“USART Receiver Time-out Register” on page 572
“USART Transmitter Timeguard Register” on page 573
“USART FI DI RATIO Register” on page 574
“USART IrDA FILTER Register” on page 576
31
23
15
—
7
USART Write Protect Mode Register
US_WPMR
30
22
14
—
Read-write
See
6
Table 30-15
29
21
13
—
5
28
20
12
—
4
WPKEY
WPKEY
WPKEY
27
19
11
—
3
26
18
10
—
2
25
17
—
9
1
SAM3N
SAM3N
WPEN
24
16
8
0
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