h8s-2111b Renesas Electronics Corporation., h8s-2111b Datasheet - Page 205

• Manufacturer Part Number: h8s-2111b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

9.5.2
A compare-match signal occurs at the last state when the FRC and OCR values match (at the
timing when the FRC updates the counter value). When a compare-match signal occurs, the level
selected by the OLVL bit in TOCR is output at the output compare pin (FTOA or FTOB). Figure
9.5 shows the timing of this operation for compare-match A.
9.5.3
FRC can be cleared when compare-match A occurs. Figure 9.6 shows the timing of this operation.
FRC
OCRA
Compare-match
A signal
OLVLA
Output compare A
output pin FTOA
φ
Compare-match
A signal
FRC
φ
Output Compare Output Timing
FRC Clear Timing
Figure 9.6 Clearing of FRC by Compare-Match A Signal
Note: * Indicates instruction execution by software.
Figure 9.5 Timing of Output Compare A Output
N
N
N
N + 1
Clear*
H'0000
Rev. 1.00, 05/04, page 171 of 544
N
N
N + 1