Hitachi H8/3048 Hardware Manual page 340

Bit 1—Input Capture/Compare Match Flag B (IMFB): This status flag indicates GRB
compare match or input capture events.
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Bit 1
IMFB Description
0 [Clearing condition]
Read IMFB when IMFB = 1, then write 0 in IMFB
1 [Setting conditions]
TCNT = GRB when GRB functions as an output compare register.
TCNT value is transferred to GRB by an input capture signal, when GRB functions as
an input capture register.
Bit 0—Input Capture/Compare Match Flag A (IMFA): This status flag indicates GRA
compare match or input capture events.
Bit 0
IMFA Description
0 [Clearing condition]
Read IMFA when IMFA = 1, then write 0 in IMFA.
DMAC activated by IMIA interrupt (channels 0 to 3 only).
1 [Setting conditions]
TCNT = GRA when GRA functions as an output compare register.
TCNT value is transferred to GRA by an input capture signal, when GRA functions
as an input capture register.
328
(Initial value)
(Initial value)