參數(shù)資料
型號(hào): AN2701
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述: PWM Generation with the HC08 Timer
中文描述: PWM生成與HC08的計(jì)時(shí)器
文件頁數(shù): 5/14頁
文件大小: 158K
代理商: AN2701
PWM Generation
PWM Generation with the HC08 Timer, Rev. 0
Freescale Semiconductor
5
Assignment must be done sequentially (using BSET 4,+ 0x25, for example)
following the steps of the PWM Initialization procedure described above.
Table 2. Mode, Edge, and Level Selection
MSxB
MSxA
ELSxB
ELSxA
Mode
Configuration
x
0
0
0
Output Preset
Pin under port control; initial output level high
x
1
0
0
Pin under port control; initial output level low
0
0
0
1
Input Capture
Capture on rising edge only
0
0
1
0
Capture on falling edge only
0
0
1
1
Capture on rising or falling edge
0
1
0
0
Output Compare or
PWM
Software compare only
0
1
0
1
Toggle output on compare
0
1
1
0
Clear output on compare
0
1
1
1
Set output on compare
1
x
0
1
Buffered Output
Compare or
Buffered PWM
Toggle output on compare
1
x
1
0
Clear output on compare
1
x
1
1
Set output on compare
If this procedure is not followed, the PWM signal generated will not be as expected.
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