MULTIJUNCTION TIMERS
10.4 TIO (Input/Output-Related 16-Bit Timer)
10
Enabled
Measure event
(capture) occurs
(by writing to
the enable bit)
Count clock
Enable bit
H'FFFF
Undefined
value
Counter
H'7000
H'0008
H'0000
Measure register
Undefined
TIN interrupt request
TIN interrupt request due to
external event input
TIO interrupt request
TIO interrupt request due
to underflow
Note: • This diagram does not show detailed timing information.
Figure 10.4.7 Typical Operation in Measure Clear Input Mode
(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.
32180 Group User’s Manual (Rev.1.0)
10-115
RENESAS [ RENESAS TECHNOLOGY CORP ]
