SAM7X256_14 Datasheet, PDF (85/662 Pages) ATMEL Corporation – ARM-based Flash MCU

16.4 Watchdog Timer (WDT) User Interface
Table 16-1.
Offset
0x00
0x04
0x08
Register Mapping
Register
Control Register
Mode Register
Status Register
Name
WDT_CR
WDT_MR
WDT_SR
Access
Write-only
Read-write Once
Read-only
Reset Value
-
0x3FFF_2FFF
0x0000_0000
16.4.1 Watchdog Timer Control Register
Register Name:
WDT_CR
Access Type:
Write-only
31
30
29
28
27
26
25
KEY
23
22
21
20
19
18
17
–
–
–
–
–
–
–
15
14
13
12
11
10
9
–
–
–
–
–
–
–
7
6
5
4
3
2
1
–
–
–
–
–
–
–
• WDRSTT: Watchdog Restart
0: No effect.
1: Restarts the Watchdog.
• KEY: Password
Should be written at value 0xA5. Writing any other value in this field aborts the write operation.
24
16
–
8
–
0
WDRSTT
SAM7X Series [DATASHEET] 85
6120K–ATARM–11-Feb-14