參數(shù)資料
型號: CTMRM
英文描述: Configurable Timer Module Reference Manual
中文描述: 配置定時器模塊參考手冊
文件頁數(shù): 108/164頁
文件大小: 1148K
代理商: CTMRM
MOTOROLA
9-14
CTM
REFERENCE
PULSE WIDTH MODULATION SUBMODULE
For More Information On This Product,
Go to: www.freescale.com
9
Software may write a new pulse width value into PWMB at any time and this new value will take
effect at the start of the next PWM period (or when the LOAD bit in the PWMSIC register is written
to a ‘1’). The PWMSM hardware does not modify the contents of PWMB1 at any time.
9.4.4
PWMC — PWM counter register
The counter (register PWMC) is read-only: software may read the counter register at any time;
writing to it has no effect. PWMC is loaded with the value $0001 on reset and is set to that value
and held whenever the PWMSM is disabled (EN = 0).
(1) Offset fromthe base address of the PWMSMsubmodule.
(1) Offset fromthe base address of the PWMSMsubmodule.
Bit:
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
PWMB
$04
(1)
MSB
LSB
Reset:
u
u
u
u
u
u
u
u
u
u
u
u
u
u
u
u
Bit:
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
PWMC
$06
(1)
MSB
LSB
Reset:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
F
.
Freescale Semiconductor, Inc.
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