Renesas 7700 FAMILY User Manual page 155

TIMER B
6.5 Pulse period/pulse width measurement mode
Measurement pulse
Reload register
Timing at which counter is
cleared to "0000
Timer Bi interrupt
Timer Bi overflow flag
Counter is initialized by completion of measurement.
Counter overflow.
Fig. 6.5.4 Operation during pulse width measurement
6–26
Count source
"H"
"L"
counter
transfer timing
"
16
"1"
Count start bit
"0"
"1"
request bit
"0"
"1"
"0"
7751 Group User's Manual
Transferred
Transferred
(undefined
(measured
value)
value)
Cleared to "0" when interrupt request is accepted or
cleared by software.
Transferred
Transferred
(measured
(measured
value)
value)