SAM3S8C Atmel Corporation, SAM3S8C Datasheet - Page 769

• Manufacturer Part Number: SAM3S8C
• Manufacturer: Atmel Corporation

32.8.16
Name:
Address:
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.
11090A–ATARM–10-Feb-12
11090A–ATARM–10-Feb-12
•
•
•
•
•
•
•
“USART Mode Register” on page 746
“USART Baud Rate Generator Register” on page 761
“USART Receiver Time-out Register” on page 762
“USART Transmitter Timeguard Register” on page 763
“USART FI DI RATIO Register” on page 764
“USART IrDA FILTER Register” on page 766
“USART Manchester Configuration Register” on page 767
31
23
15
—
7
USART Write Protect Mode Register
US_WPMR
0x400240E4 (0), 0x400280E4 (1), 0x4002C0E4 (2)
30
22
14
—
Read-write
See
6
Table 32-16
29
21
13
—
5
28
20
12
—
4
WPKEY
WPKEY
WPKEY
27
19
11
—
3
26
18
10
—
2
SAM3S8/SD8
SAM3S8/SD8
25
17
—
9
1
WPEN
24
16
8
0
769
769