m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 176

• Manufacturer Part Number: m37905
• Description: Mitsubishi 16-bit Single-chip Microcomputer 7700 Family / 7900 Series
• Manufacturer: Renesas Electronics Corporation.

Fig. 8.5.4 Operation examples during pulse period measurement (when counter clear type is selected)
Figures 8.5.4 and 8.5.5 show the operation examples during the pulse period measurement; Figures 8.5.6
and 8.5.7 show the operation examples during the pulse width measurement.
Reload register
Timing at which counter is
Timer Bi overflow flag
Counter is initialized by completion of measurement.
Counter overflows.
Measurement pulse
cleared to “0000
Timer Bi interrupt
Transfer timing
Count source
Count start bit
The above applies when measurement is performed for an interval from one falling edge to the next
falling edge of the measurement pulse.
Undefined
request bit
FFFF
0000
value
Counter
16
16
16
”
Cleared to “0” by software.
Undefined
7905 Group User’s Manual Rev.1.0
8.5 Pulse period/pulse width measurement mode
Cleared to “0” when interrupt request is accepted or
cleared to “0” by software.
(undefined value)
Transferred
(measured value)
Transferred
TIMER B
Time
8-25