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10.4 TIO (Input/Output-Related 16-Bit Timer)
MULTIJUNCTION TIMERS
32180 Group User’s Manual (Rev.1.0)
(2) Precautions on using TIO measure free-run/ clear input modes
The following describes precautions to be observed when using TIO measure free-run/ clear input modes.
• If measure event input and write to the counter occur in the same clock period, the write value is set in the
counter while at the same time latched into the measure register.
Figure 10.4.7 Typical Operation in Measure Clear Input Mode
H'FFFF
H'0000
H'7000
H'0008
Enabled
(by writing to
the enable bit)
Measure event
(capture) occurs
Count clock
Counter
TIO interrupt request
Enable bit
Note: • This diagram does not show detailed timing information.
Measure register
TIN interrupt request
Undefined
value
TIN interrupt request due to
external event input
TIO interrupt request due
to underflow
Undefined
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