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2 various clear operations of the free-run timer – FUJITSU MB91460 SERIES FR60 User Manual

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Chapter 35 Free-Run Timer

5.Operation

5.2 Various Clear Operations of the Free-run Timer

Clear operations of the free-run timer (4 types)

(1) Reset

(2) Clear by software

(3) Clear by the compare-match

(4) Writing “0000”

Reset

Clear

The count of
the free-run
timer

Time

0000 h

Clear by software or the
compare-match.

The enable/disable
of the operation
(software)

Write "0000"

Peripheral
clock (CLKP)

Count
timing

N-1

N

"0000"

"0001"

Compare value = N

Compare-match

Clearing the free-run timer

The request of interrupt

Timing of the clear by the compare-match

(1)

(2)
(3)

(4)

Operation stop

(Internal clock)

Operation

stop

-

Count value

Compare value