Figure 12.3 Periodic Counter Operation; Figure 12.4 0 And 1 Output Example (Toa = 0, Tob = 1) - Renesas H8/36912 Series User Manual

GRA
H'0000
CTS bit
IMFA
By setting a general register as an output compare register, compare match A, B, C, or D can cause
the output at the FTIOA, FTIOB, FTIOC, or FTIOD pin to output 0, output 1, or toggle. Figure
12.4 shows an example of 0 and 1 output when TCNT operates as a free-running counter, 1 output
is selected for compare match A, and 0 output is selected for compare match B. When signal is
already at the selected output level, the signal level does not change at compare match.
Figure 12.5 shows an example of toggle output when TCNT operates as a free-running counter,
and toggle output is selected for both compare match A and B.
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TCNT value

Figure 12.3 Periodic Counter Operation

TCNT value
H'FFFF
GRA
GRB
H'0000
FTIOA
FTIOB

Figure 12.4 0 and 1 Output Example (TOA = 0, TOB = 1)

Flag cleared
by software
No change
No change No change
Rev. 1.00, 11/03, page 165 of 376
Time
Time
No change