HD6433045 HITACHI [Hitachi Semiconductor], HD6433045 Datasheet - Page 372

• Manufacturer Part Number: HD6433045
• Description: Hitachi Single-Chip Microcomputer
• Manufacturer: HITACHI [Hitachi Semiconductor]

In complementary PWM mode, TCNT3 and TCNT4 overshoot and undershoot at the transitions
between up-counting and down-counting. The setting conditions for the IMFA bit in channel 3 and
the OVF bit in channel 4 differ from the usual conditions. In buffered operation the buffer transfer
conditions also differ. Timing diagrams are shown in figures 10-37 and 10-38.
Buffer transfer
signal (BR to GR)
TCNT3
GRA3
IMFA
GR
Figure 10-37 Overshoot Timing
N – 1
Buffer transfer
N
360
Set to 1
N
N + 1
N
Flag not set
No buffer transfer
N – 1