Panasonic F77G, MN101C77C user manual Duty Cycle of Remote Control Carrier Output Signal

Models: F77G MN101C77C

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Chapter 6 8-bit Timers

6-11 Remote Control Carrier Output

6-11-1 Operation

Carrier pulse for remote control can be generated.

„Operation of Remote Control Carrier Output (Timer 0, Timer 5)

Remote control carrier pulse is based on output signal of timer 0 or timer 5. Duty cycle is selected from 1/ 2, 1/3. RMOUT (P10/P11) outputs remote control carrier output signal.

Base period set by timer

Base

timer output

RMOUT (1/2 duty)

RMOUT (1/3 duty)

Figure 6-11-1 Duty Cycle of Remote Control Carrier Output Signal

„Count Timing of Remote Control Carrier Output (Timer 0, Timer 5)

Base

timer output

Output ON

RMOEN

Output OFF

RMOUT (1/3 duty)

(A)

Figure 6-11-2 Count Timing of Remote Control Carrier Output Function (Timer 0, Timer 5)

(A)Even if the RMOEN flag is off when the carrier output is high, the carrier waveform is held by the synchronizing circuit.

Before the RMOEN flag is switched to on, set the P1OMD0 flag or P1OMD1 flag of the P1OMD register to "1". After it is switched to off, set it to "0".

When the RMOEN flag is changed, do not change the base cycle and its duty at the same time. If they are changed at the same time, the carrier wave form is not output properly.

Remote Control Carrier Output VI - 43

Page 257
Image 257
Panasonic F77G, MN101C77C user manual Duty Cycle of Remote Control Carrier Output Signal