LM3S101-CRN20-XNPP ETC1 [List of Unclassifed Manufacturers], LM3S101-CRN20-XNPP Datasheet - Page 169
LM3S101-CRN20-XNPP
Manufacturer Part Number
LM3S101-CRN20-XNPP
Description
Microcontroller
Manufacturer
ETC1 [List of Unclassifed Manufacturers]
Datasheet
1.LM3S101-CRN20-XNPP.pdf
(284 pages)
- Current page: 169 of 284
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Watchdog Timer
169
Reset
Type
Reset
Type
Bit/Field
Watchdog Lock (WDTLOCK)
Offset 0xC00
31:0
R/W
R/W
31
15
0
0
Register 7: Watchdog Lock (WDTLOCK), offset 0xC00
Writing 0x1ACCE551 to the WDTLOCK register enables write access to all other registers. Writing
any other value to the WDTLOCK register re-enables the locked state for register writes to all the
other registers. Reading the WDTLOCK register returns the lock status rather than the 32-bit
value written. Therefore, when write accesses are disabled, reading the WDTLOCK register
returns 0x00000001 (when locked; otherwise, the returned value is 0x00000000 (unlocked)).
R/W
R/W
30
14
0
0
WDTLock
Name
R/W
R/W
29
13
0
0
R/W
R/W
28
12
0
0
Type
R/W
R/W
R/W
27
11
0
0
R/W
R/W
26
10
0
0
0x0000
Reset
R/W
R/W
25
0
9
0
Preliminary
R/W
R/W
24
WDTLock
WDTLock
0
8
0
Description
Watchdog Lock
A write of the value 0x1ACCE551 unlocks the watchdog
registers for write access. A write of any other value
reapplies the lock, preventing any register updates.
A read of this register returns the following values:
Locked: 0x00000001
Unlocked: 0x00000000
R/W
R/W
23
0
7
0
R/W
R/W
22
0
6
0
R/W
R/W
21
0
5
0
R/W
R/W
20
0
4
0
R/W
R/W
19
0
3
0
R/W
R/W
18
0
2
0
March 22, 2006
R/W
R/W
17
0
1
0
R/W
R/W
16
0
0
0
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