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Watchdog Timer Register Manual
Table 16-77. WIER
Address Offset
0x01C
Physical Address
0x4831 4018
Instance
WDTIMER2
0x4903 0014
WDTIMER3
Description
This register shows controls (enable/disable) the interrupt events.
Type
RW
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
Reserved
OVF_IT_ENA
Bits
Field Name
Description
Type
Reset
31:1
Reserved
Reads return 0.
R
0x00000000
0
OVF_IT_ENA
Enable overflow interrupt
RW
0
0x0:
Disable overflow interrupt.
0x1:
Enable overflow interrupt.
Table 16-78. Register Call Summary for Register WIER
Watchdog Timers
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:
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Watchdog Timer Register Manual
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Table 16-79. WCLR
Address Offset
0x024
Physical Address
0x4831 4024
Instance
WDTIMER2
0x4903 0024
WDTIMER3
Description
This register controls the prescaler stage of the counter.
Type
RW
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
Reserved
PTV
PRE
Reserved
Bits
Field Name
Description
Type
Reset
31:6
Reserved
Reads return 0.
R
0x0000000
5
PRE
Prescaler enable
RW
1
0x0:
Prescaler disabled
0x1:
Prescaler enabled
4:2
PTV
Prescaler value: The timer counter is prescaled with the value:
RW
0x0
pow(2,PTV)
Example: PTV = 2: counter increases value is started after 4
functional clock periods.
1:0
Reserved
Reads return 0.
R
0x0
2759
SWPU177N – December 2009 – Revised November 2010
Timers
Copyright © 2009–2010, Texas Instruments Incorporated