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Chapter 6 8-bit Timers
6-10
Remote Control Carrier Output
6-10-1
Operation
Carrier pulse for remote control can be generated.
nOperation of Remote Control Carrier Output (Timer 3)
Remote control carrier pulse is based on output signal of timer 3. Duty cycle is selected from 1/2, 1/3 and
base timer output. RMOUT (P10) outputs remote control carrier output signal.
Base period set by timer
Base
timer output
RMOUT
(Base timer
output)
RMOUT
(1/2 duty)
RMOUT
(1/3 duty)
Figure 6-10-1
Duty Cycle of Remote Control Carrier Output Signal
nCount Timing of Remote Control Carrier Output (Timer 3)
Base
timer output
Output ON
RMOEN
Output OFF
RMOUT
(1/3 duty)
(A)
Figure 6-10-2
(A)
Count Timing of Remote Control Carrier Output Function (Timer 3)
Even if the RMOEN flag is off when the carrier output is high, the carrier waveform is held
by the synchronizing circuit.
Remote Control Carrier Output
VI - 35