參數(shù)資料
型號(hào): MC80F0224
廠商: Electronic Theatre Controls, Inc.
元件分類: 8位微控制器
英文描述: 8-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 8位單晶片微控制器
文件頁數(shù): 72/128頁
文件大小: 1408K
代理商: MC80F0224
MC80F0208/16/24
Preliminary
68
MAR. 2005 Ver 0.2
Figure 14-21 Example of PWM at 4MHz
Figure 14-22 Example of Changing the Period in Absolute Duty Cycle (@8MHz)
Source
clock
T3
PWM3O
[POL=1]
~
~
01
02
03
04
7E
7F
80
01
02
~
~
~
~
~
~
PWM3O
[POL=0]
Duty Cycle [ (1+7Fh) x 250nS = 32uS ]
Period Cycle [ (3FFh+1) x 250nS = 256uS, 3.9KHz ]
T3PWHR = 0CH
T3PPR = FFH
T3PDR = 7FH
T3CK[1:0] = 00 ( XIN )
T3PWHR3
T3PWHR2
T3PWHR1
T3PWHR0
T3PPR (8-bit)
T3PDR (8-bit)
Period
Duty
1
1
FFH
0
0
7FH
00
PWM3E
~
T3ST
~
T3CN
~
00
3FF
Source
clock
T3
PWM3O
POL=1
Duty Cycle
[ (04h+1) x 2uS = 10uS ]
Period Cycle [ (1+0Dh) x 2uS = 28uS, 35.5KHz ]
PWM3HR = 00H
T3PPR = 0DH
T3PDR = 04H
T3CK[1:0] = 10 ( 2us )
01
02
03
04
05
07
08
0A 0B 0C
0D
00 01
02
03
04
05 06
07
08
09
00 01
02 03
06
09
04
Duty Cycle
[ (04h+1) x 2uS = 10uS ]
Period Cycle [ (1+09h) x 2uS = 20uS, 50KHz ]
Duty Cycle
[ (04h+1) x 2uS = 10uS ]
Write T3PPR to 09H
00
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