LM3S317 Luminary Micro, Inc, LM3S317 Datasheet - Page 334

• Manufacturer Part Number: LM3S317
• Description: Lm3s317 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

Pulse Width Modulator (PWM)
334
Reset
Reset
Type
Type
Bit/Field
31:16
15:0
PWMn Load (PWMnLOAD)
R/W
RO
31
15
0
0
Register 22: PWM0 Load (PWM0LOAD), offset 0x050
Register 23: PWM1 Load (PWM1LOAD), offset 0x090
Register 24: PWM2 Load (PWM2LOAD), offset 0x0D0
These registers contain the load value for the PWM counter (PWM0LOAD controls the PWM
generator 0 block, and so on). Based on the counter mode, either this value is loaded into the
counter after it reaches zero, or it is the limit of up-counting after which the counter decrements
back to zero. If the Load Value Update mode is immediate, this value is used the next time the
counter reaches zero; if the mode is synchronous, it is used the next time the counter reaches zero
after a synchronous update has been requested through the PWM Master Control (PWMCTL)
register (see page 319). If this register is re-written before the actual update occurs, the previous
value is never used and is lost.
R/W
RO
30
14
0
0
reserved
Name
Load
R/W
RO
29
13
0
0
R/W
RO
28
12
0
0
Type
R/W
R/W
RO
RO
27
11
0
0
R/W
RO
26
10
0
0
Reset
R/W
RO
25
0
9
0
0
0
Preliminary
R/W
RO
24
0
8
0
reserved
Load
Description
Reserved bits return an indeterminate value, and should
never be changed.
The counter load value.
R/W
RO
23
0
7
0
R/W
RO
22
0
6
0
R/W
RO
21
0
5
0
R/W
RO
20
0
4
0
R/W
RO
19
0
3
0
R/W
RO
18
0
2
0
February 6, 2007
R/W
RO
17
0
1
0
R/W
RO
16
0
0
0