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M16C Datasheet, PDF (98/262 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER | |||
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Timer B
Preliminary Specifications REV.B
Mitsubishi microcomputers
Specifications in this manual are tentative and subject to change.
M16C / 6N Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
When measuring measurement pulse time interval from falling edge to falling edge
Count source
Measurement pulse âHâ
âLâ
Reload register counter
transfer timing
Timing at which counter
reaches â000016â
â1â
Count start flag
â0â
Transfer
(indeterminate value)
Transfer
(measured value)
(Note 1)
(Note 1)
(Note 2)
Timer Bi interrupt
â1â
request bit
â0â
Timer Bi overflow flag â1â
â0â
Cleared to â0â when interrupt request is accepted, or cleared by software.
Note 1: Counter is initialized at completion of measurement.
Note 2: Timer has overflowed.
Figure 10-7. Operation timing when measuring a pulse period
Count source
âHâ
Measurement pulse
âLâ
Reload register counter
transfer timing
Timing at which counter
reaches â000016â
Transfer
(indeterminate
value)
Transfer
(measured value)
Transfer
(measured
value)
Transfer
(measured value)
(Note 1)
(Note 1)
(Note 1) (Note 1)
(Note 2)
Count start flag
â1â
â0â
Timer Bi interrupt
â1â
request bit
â0â
Timer Bi overflow flag â1â
â0â
Cleared to â0â when interrupt request is accepted, or cleared by software.
Note 1: Counter is initialized at completion of measurement.
Note 2: Timer has overflowed.
Figure 10-8. Operation timing when measuring a pulse width
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