參數(shù)資料
型號： EM78P468NQ
廠商： ELAN Microelctronics Corp .
元件分類： 8位微控制器
英文描述： 8-BIT MICROCONTROLLER
中文描述： 8位微控制器
文件頁數(shù)： 51/82頁
文件大小： 1491K
代理商： EM78P468NQ
EM78P468N
8-BIT Microcontroller
Product Specification
(V1.2) 03.15.2005
(This specification is subject to change without further notice)
47
The IROUT output waveform is further explained in the following figures:
Fig. 22
LGP=0, HF=1, the IROUT waveform can modulate Fcarrier waveform when in
low-pulse width time.
Fig. 23
LGP=0, HF=0, the IROUT waveform cannot modulate Fcarrier waveform when
in low-pulse width time. So IROUT waveform is determined by high-pulse time
and low-pulse time. This mode can produce standard PWM waveform
Fig. 24
LGP=0, HF=1, the IROUT waveform can modulate Fcarrier waveform when in
low-pulse width time. When IRE goes from high to low, the output waveform of
IROUT will keep on transmitting till high-pulse width timer interrupt occurs.
Fig. 25
LGP=0, HF=0, the IROUT waveform can not modulate Fcarrier waveform when
in low-pulse width time. So IROUT waveform is determined by high-pulse time
and low-pulse time. This mode can produce standard PWM waveform. When
IRE goes from high to low, the output waveform of IROUT will keep on
transmitting till high-pulse width timer interrupt occurs.
Fig.26
LGP=1, when this bit is set to high level, the high-pulse width timer is ignored.
So IROUT waveform output from low-pulse width timer is established.
Fcarrier
low-pulse width
high-pulse width
IROUT
start
HF
IRE
high-pulse width
low-pulse width
Fig. 22 LGP=0, IROUT Pin Output Waveform
Fcarrier
low-pulse width
high-pulse width
IROUT
start
HF
IRE
high-pulse width
low-pulse width
Fig. 23 LGP=0, IROUT Pin Output Waveform
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