h8s-2169 Renesas Electronics Corporation., h8s-2169 Datasheet - Page 395

• Manufacturer Part Number: h8s-2169
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

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.
External clock
input pin
TCNT input
clock
TCNT
Compare-match
signal
CMF
TCNT
TCOR
Compare-Match Timing
Figure 12.3 Count Timing for External Clock Input
N – 1
Figure 12.4 Timing of CMF Setting
N
N
Rev. 3.00 Jan 18, 2006 page 367 of 1044
N
N + 1
Section 12 8-Bit Timers
REJ09B0280-0300
N + 1