Fujitsu MB91460 SERIES FR60 User Manual page 769

5.2 Input Capture Edge Specification and Operation
Overflow
(IVF)
FFFFh
Free-run
timer 0
count value
0000 h
Reset
Input capture
Capture data
Rising
register
edge
Interrupt
request
Input capture
Capture data
Falling
register
edge
Interrupt
request
Input capture
Capture data
Both
register
edges
Interrupt
request
• When specifying rising edge
(1) Detection of rising edge of input signal
(2) Storage of free-run timer value in capture register (capture)
(3) Input capture interrupt generation
• When specifying falling edge
(4) Detection of input signal falling edge
(5) Storage of free-run timer value in capture register (capture)
(6) Input capture interrupt generation
• Both edges
(7) Detection of input signal rising edge
(8) Storage of free-run timer value in capture register (capture)
(9) Input capture interrupt generation
(10) Clear interrupt request flag (ICS01.ICP0), (ICS01.ICP1) in software
(11) Detection of input signal falling edge
(12) Storage of free-run timer value in capture register (capture)
(13) Input capture interrupt generation
Count value C
Count value B
Count value A
(1)
(2)
Indeterminate
Count value A
(3)
Indeterminate
(7) 7)
(8)
Indeterminate Count value B
(9)
Count value D
(4)
(5)
Count value C
(6)
(11)
Clearing of flags in software
(10)
Chapter 36 Input Capture
Time
(12)
Count value D
(13)
5.Operation
753