LM3S2110-IQN20-A0 Luminary Micro, Inc., LM3S2110-IQN20-A0 Datasheet - Page 427

• Manufacturer Part Number: LM3S2110-IQN20-A0
• Description: Microcontroller
• Manufacturer: Luminary Micro, Inc.

PWM0 Generator A Control (PWM0GENA)
Base 0x4002.8000
Offset 0x060
Type R/W, reset 0x0000.0000
November 29, 2007
Reset
Reset
Type
Type
Bit/Field
31:12
11:10
RO
RO
31
15
0
0
Register 18: PWM0 Generator A Control (PWM0GENA), offset 0x060
This register controls the generation of the PWMnA signal based on the load and zero output pulses
from the counter, as well as the compare A and compare B pulses from the comparators. When the
counter is running in Count-Down mode, only four of these events occur; when running in
Count-Up/Down mode, all six occur. These events provide great flexibility in the positioning and
duty cycle of the PWM signal that is produced.
The PWM0GENA register controls generation of the PWM0A signal.
If a zero or load event coincides with a compare A or compare B event, the zero or load action is
taken and the compare A or compare B action is ignored. If a compare A event coincides with a
compare B event, the compare A action is taken and the compare B action is ignored.
RO
RO
30
14
0
0
reserved
ActCmpBD
reserved
Name
RO
RO
29
13
0
0
RO
RO
28
12
0
0
R/W
RO
Type
27
11
R/W
0
0
RO
ActCmpBD
R/W
RO
26
10
0
0
Reset
0x00
0x0
R/W
RO
25
0
9
0
ActCmpBU
Preliminary
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.
Action for Comparator B Down
The action to be taken when the counter matches comparator B while
counting down.
The table below defines the effect of the event on the output signal.
R/W
RO
Value
24
0
8
0
0x0
0x1
0x2
0x3
reserved
Description
Do nothing.
Invert the output signal.
Set the output signal to 0.
Set the output signal to 1.
R/W
RO
23
0
7
0
ActCmpAD
R/W
RO
22
0
6
0
R/W
RO
21
0
5
0
ActCmpAU
R/W
RO
20
0
4
0
LM3S2110 Microcontroller
R/W
RO
19
0
3
0
ActLoad
R/W
RO
18
0
2
0
R/W
RO
17
0
1
0
ActZero
R/W
RO
16
0
0
0
427