Table of Contents
Advertisement
CHAPTER 26 μPG TIMER (ONLY MB90485 SERIES)
26.3 Timing Chart of μPG Timer
This section shows a timing chart and timing for the μPG timer.
Timing chart of μPG timer
■
Figure 26.3-1 shows the timing chart of input and output signals for the μPG timer.
Figure 26.3-1 Timing chart of input/output signals for the μPG timer
Input waveform
Output MT00
Output MT01
Inverted output MT00
Inverted output MT01
■
Notes on timing
•
Figure 26.3-1 shows the output waveform against the input waveform. The duty ratio is fixed
at 50%.
•
In sync with the first rising pulse after start, the output starts from the 2nd rising pulse.
•
Two outputs for one input waveform are only issued using inversion control via the program.
•
For the input pulse (waveform at the EXTC pin), use an interval 10 times larger than one
pulse of the internal clock (machine clock).
•
To write "11
pins), keep the value at the input pin (EXTC) constant. Otherwise, if a pulse is input to the
input pin (EXTC) when pin output is allowed, the width of the first output pulse may become
shorter than that of the input pulse.
554
" for the PE0 and PE1 of the μPG control/status register (allow output for all
B
Advertisement
Table of Contents
