HD404629R Datasheet, PDF (66/157 Pages) Renesas Technology Corp – AS Microcomputer Incorporating a DTMF Generator Circuit

HD404629R Series
Toggle output waveform (timers B, C, and D)
Free-running timer
256 clock cycles
Reload timer
256 clock cycles
(256 – N) clock cycles (256 – N) clock cycles
PWM output waveform (timers C and D)
T × (N + 1)
TMC13 = 0
TMD13 = 0
TMC13 = 1
TMD13 = 1
T × 256
T
T × (256 – N)
Note: The waveform is always fixed low when N = $FF.
T: Input clock period to counter (figures 52 and 60)
N: The value of the timer write register
Figure 46 Timer Output Waveform
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