LM3S818 Datasheet, PDF (472/572 Pages) Bookham, Inc. – Microcontroller

Pulse Width Modulator (PWM)
Register 5: PWM Output Fault (PWMFAULT), offset 0x010
This register controls the behavior of the PWM outputs in the presence of fault conditions. Both the
fault inputs and debug events are considered fault conditions. On a fault condition, each PWM signal
can be passed through unmodified or driven Low. For outputs that are configured for pass-through,
the debug event handling on the corresponding PWM generator also determines if the PWM signal
continues to be generated.
Fault condition control occurs before the output inverter, so PWM signals driven Low on fault are
inverted if the channel is configured for inversion (therefore, the pin is driven High on a fault condition).
PWM Output Fault (PWMFAULT)
Base 0x4002.8000
Offset 0x010
Type R/W, reset 0x0000.0000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
reserved
Type RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
reserved
Fault5 Fault4 Fault3 Fault2 Fault1 Fault0
Type RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit/Field
31:6
5
4
3
2
1
0
Name
reserved
Fault5
Fault4
Fault3
Fault2
Fault1
Fault0
Type
RO
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0x00
0
0
0
0
0
0
Description
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
PWM5 Fault
When set, the PWM5 output signal is driven Low on a fault condition.
PWM4 Fault
When set, the PWM4 output signal is driven Low on a fault condition.
PWM3 Fault
When set, the PWM3 output signal is driven Low on a fault condition.
PWM2 Fault
When set, the PWM2 output signal is driven Low on a fault condition.
PWM1 Fault
When set, the PWM1 output signal is driven Low on a fault condition.
PWM0 Fault
When set, the PWM0 output signal is driven Low on a fault condition.
472
July 14, 2014
Texas Instruments-Production Data