HD404054 Datasheet, PDF (50/101 Pages) Hitachi Semiconductor – HMCS400-series microcomputers designed to increase program productivity with large-capacity memory

HD404054 Series/HD404094 Series
Toggle output waveform (timers 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)
Notes: The waveform is always fixed low when N = $FF.
T: Input clock period to counter (figures 34 and 41)
N: The value of the timer write register
Figure 33 Timer Output Waveform
50