LM3S9D92 Datasheet, PDF (1154/1407 Pages) Texas Instruments – ARM and Thumb are registered trademarks and Cortex is a trademark

Pulse Width Modulator (PWM)
Register 3: PWM Output Enable (PWMENABLE), offset 0x008
This register provides a master control of which generated pwmA' and pwmB' signals are output to
the PWMn pins. By disabling a PWM output, the generation process can continue (for example, when
the time bases are synchronized) without driving PWM signals to the pins. When bits in this register
are set, the corresponding pwmA' or pwmB' signal is passed through to the output stage. When bits
are clear, the pwmA' or pwmB' signal is replaced by a zero value which is also passed to the output
stage. The PWMINVERT register controls the output stage, so if the corresponding bit is set in that
register, the value seen on the PWMn signal is inverted from what is configured by the bits in this
register. Updates to the bits in this register can be immediate or locally or globally synchronized to
the next synchronous update as controlled by the ENUPDn fields in the PWMENUPD register.
PWM Output Enable (PWMENABLE)
PWM0 base: 0x4002.8000
Offset 0x008
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
PWM7EN PWM6EN PWM5EN PWM4EN PWM3EN PWM2EN PWM1EN PWM0EN
Type RO
RO
RO
RO
RO
RO
RO
RO
R/W
R/W
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
31:8
7
Name
reserved
PWM7EN
Type
RO
R/W
Reset Description
0x0000.00 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.
0
PWM7 Output Enable
Value Description
1 The generated pwm3B' signal is passed to the PWM7 pin.
0 The PWM7 signal has a zero value.
6
PWM6EN
R/W
0
PWM6 Output Enable
Value Description
1 The generated pwm3A' signal is passed to the PWM6 pin.
0 The PWM6 signal has a zero value.
5
PWM5EN
R/W
0
PWM5 Output Enable
Value Description
1 The generated pwm2B' signal is passed to the PWM5 pin.
0 The PWM5 signal has a zero value.
1154
Texas Instruments-Production Data
January 22, 2012