Rainbow Electronics W90N745CDG User Manual
Page 371
W90N745CD/W90N745CDG
Publication Release Date: September 22, 2006
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367
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Revision
A2
PWM Comparator Register 0/1/2/3 (PWM_CMR0/1/2/3)
REGISTER ADDRESS R/W
DESCRIPTION
RESET
VALUE
PWM_CMR0
0xFFF8_7010
R/W PWM Comparator Register 0
0x0000_0000
PWM_CMR1
0xFFF8_701C
R/W PWM Comparator Register 1
0x0000_0000
PWM_CMR2
0xFFF8_7028
R/W PWM Comparator Register 2
0x0000_0000
PWM_CMR3
0xFFF8_7034
R/W PWM Comparator Register 3
0x0000_0000
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
15
14
13
12
11
10
9
8
CMRx[15:8]
7
6
5
4
3
2
1
0
CMRx[7:0]
BITS
DESCRIPTIONS
[31:16]
Reserved -
[15:0]
CMRx
CMR: PWM comparator register
Inserted data range: 65535~0. CMR is used to determine PWM output
duty ratio.
Note 1: PWM duty = CMR + 1.If CMR is loaded as zero, PWM duty =
1
Note 2: Programmer can feel free to write data to CMR at any time,
and it will be reloaded when PWM counter reaches zero.