Mitsubishi Electric M32R Series User Manual page 362

Mitsubishi 32-bit risc single-chip microcomputers

Table of Contents

In the example below, the counter has the initial value H'A000 set in it and the reload register has

the initial value H'F000 set in it. When the timer starts, the counter starts counting down clock

pulses and when it underflows after reaching the minimum count, the counter is reloaded with the

content of the reload register. Then when the counter underflows next time while continuing down-

count, it stops.

Reload register

Correction register

TOP interrupt

due to underflow

Note: This diagram does not show detail timing information.

Figure 10.3.16 Typical Operation in TOP Delayed Single-shot Output

(by writing to enable bit

or by external input)

Down-count starting

from counter's

MULTIJUNCTION TIMERS

10.3 TOP (Output-related 16-bit Timer)

(first time)

Down-count starting

from reload register's

Data inverted by

(second time)

Data inverted by