M306V5ME-XXXSP Datasheet, PDF (85/262 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

MITSUBISHI MICROCOMPUTERS
M306V5ME-XXXSP
M306V5EESP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
When measuring measurement pulse time interval from falling edge to falling edge
Count source
“H”
Measurement pulse
“L”
Reload register counter
transfer timing
Timing at which counter
reaches “000016”
“1”
Count start flag
“0”
Transfer
(indeterminate value)
Transfer
(measured value)
(Note 1)
(Note 1)
(Note 2)
Timer B0 interrupt
“1”
request bit
“0”
Timer B0 overflow flag ^{“1”}
“0”
Cleared to “0” when interrupt request is accepted, or cleared by software.
Notes 1: Counter is initialized at completion of measurement.
2: Timer has overflowed.
Figure 2.10.24 Operation timing when measuring a pulse period
Count source
“H”
Measurement pulse
“L”
Reload register counter
transfer timing
Timing at which counter
reaches “000016”
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
“1”
“0”
Timer B0 interrupt
“1”
request bit
“0”
Timer B0 overflow flag ^{“1”}
“0”
Cleared to “0” when interrupt request is accepted, or cleared by software.
Notes 1: Counter is initialized at completion of measurement.
2: Timer has overflowed.
Figure 2.10.25 Operation timing when measuring a pulse width
Rev. 1.0
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