EM78P468LAQ EMC [ELAN Microelectronics Corp], EM78P468LAQ Datasheet - Page 52

• Manufacturer Part Number: EM78P468LAQ
• Description: 8-BIT Microcontroller
• Manufacturer: EMC [ELAN Microelectronics Corp]

EM78P468L
8-BIT Microcontroller
48 •
Fcarrier
IROUT
Fcarrier
IROUT
IRE
HF
IRE
HF
start
start
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
Fig. 23 LGP=0, HF=0, the IROUT waveform cannot modulate Fcarrier waveform when
Fig. 24 LGP=0, HF=1, the IROUT waveform can modulate Fcarrier waveform when in
Fig. 25 LGP=0, HF=0, the IROUT waveform can not modulate Fcarrier waveform when
Fig.26
low-pulse width
low-pulse width
low-pulse width time.
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
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.
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.
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.
Fig. 22 LGP=0, IROUT Pin Output Waveform
Fig. 23 LGP=0, IROUT Pin Output Waveform
high-pulse width
high-pulse width
low-pulse width
low-pulse width
(This specification is subject to change without further notice)
Product Specification (V1.0) 03.15.2006
high-pulse width
high-pulse width