HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 598

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 12 8-Bit Timers
12.3.2
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 12.4 shows this timing.
Rev.6.00 Sep. 27, 2007 Page 568 of 1268
REJ09B0220-0600
φ
External clock
input pin
Clock input
to TCNT
TCNT
φ
TCNT
TCOR
Compare match
signal
CMF
Compare Match Timing
Figure 12.3 Count Timing for External Clock Input
N–1
Figure 12.4 Timing of CMF Setting
N
N
N
N+1
N+1