HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 417

• Manufacturer Part Number: HD6412240
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

10.3.2
Setting of Compare Match Flags A and B (CMFA, CMFB)
The CMFA and CMFB flags in TCSR are set to 1 by a compare match signal generated when the
TCOR and TCNT values match. The compare match signal is generated at the last state in which
the match is true, just before the timer counter is updated.
Therefore, when TCOR and TCNT match, the compare match signal is not generated until the
next incrementation clock input. Figure 10.4 shows this timing.
External clock
input
Clock input
to TCNT
TCNT
TCNT
TCOR
Compare match
signal
CMF
Compare Match Timing
Figure 10.3 Count Timing for External Clock Input
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Figure 10.4 Timing of CMF Setting
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Rev.3.00 Mar. 26, 2007 Page 375 of 772
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Section 10 8-Bit Timers
REJ09B0355-0300
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