Mitsubishi Electric M32R Series User Manual page 368

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'E000 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 and continues counting down.

Reload register

Correction register

TOP interrupt

due to underflow

Note: This diagram does not show detail timing information.

Figure 10.3.21 Typical Operation in TOP Continuous Output Mode

(by writing to enable bit

or by external input)

starting from

Data inverted by

MULTIJUNCTION TIMERS

10.3 TOP (Output-related 16-bit Timer)

(first time)

(second time)

starting from

reload register

Data inverted by

starting from

reload register