LM3S8971 Luminary Micro, Inc, LM3S8971 Datasheet - Page 509

• Manufacturer Part Number: LM3S8971
• Description: Lm3s8971 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

Reset
Reset
Type
Type
PWM0 Dead-Band Control (PWM0DBCTL)
Base 0x4002.8000
Offset 0x068
Type R/W, reset 0x0000.0000
July 26, 2008
Bit/Field
31:1
0
RO
RO
31
15
0
0
Register 40: PWM0 Dead-Band Control (PWM0DBCTL), offset 0x068
Register 41: PWM1 Dead-Band Control (PWM1DBCTL), offset 0x0A8
Register 42: PWM2 Dead-Band Control (PWM2DBCTL), offset 0x0E8
The PWM0DBCTL register controls the dead-band generator, which produces the PWM0 and PWM1
signals based on the PWM0A and PWM0B signals. When disabled, the PWM0A signal passes through
to the PWM0 signal and the PWM0B signal passes through to the PWM1 signal. When enabled and
inverting the resulting waveform, the PWM0B signal is ignored; the PWM0 signal is generated by
delaying the rising edge(s) of the PWM0A signal by the value in the PWM0DBRISE register (see
page 510), and the PWM1 signal is generated by delaying the falling edge(s) of the PWM0A signal by
the value in the PWM0DBFALL register (see page 511). In a similar manner, PWM2 and PWM3 are
produced from the PWM1A and PWM1B signals, and PWM4 and PWM5 are produced from the PWM2A
and PWM2B signals.
RO
RO
30
14
0
0
reserved
RO
RO
29
13
Enable
0
0
Name
RO
RO
28
12
0
0
RO
RO
27
11
0
0
Type
R/W
RO
RO
RO
26
10
0
0
Reset
0x00
RO
RO
25
0
9
0
0
Preliminary
reserved
RO
RO
24
0
8
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.
Dead-Band Generator Enable
When set, the dead-band generator inserts dead bands into the output
signals; when clear, it simply passes the PWM signals through.
reserved
RO
RO
23
0
7
0
RO
RO
22
0
6
0
RO
RO
21
0
5
0
RO
RO
20
0
4
0
LM3S8971 Microcontroller
RO
RO
19
0
3
0
RO
RO
18
0
2
0
RO
RO
17
0
1
0
Enable
R/W
RO
16
0
0
0
509