Hitachi H8/3022 Hardware Manual page 275

Timing of Setting of IMFA and IMFB by Input Capture: IMFA and IMFB are set to 1 by an
input capture signal. The TCNT contents are simultaneously transferred to the corresponding
general register. Figure 8-58 shows the timing.
ø
Input capture
signal
IMF
TCNT
GR
IMI
Figure 8-58 Timing of Setting of IMFA and IMFB by Input Capture
Timing of Setting of Overflow Flag (OVF): OVF is set to 1 when TCNT overflows from
H'FFFF to H'0000 or underflows from H'0000 to H'FFFF. Figure 8-59 shows the timing.
N
N
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