Datasheet

386
Input capture
signal
TCNT
φ
TGR
TGF flag
TGI interrupt
N
N
Figure 12.70 TGI Interrupt Timing (Input Capture)
Setting Timing for Overflow Flag (TCFV)/Underflow Flag (TCFU): Figure 12.71 shows
timing for the TCFV flag of the timer status register (TSR) due to overflow, as well as TCIV
interrupt request signal timing. Figure 12.72 shows timing for the TCFU flag of the timer status
register (TSR) due to underflow, as well as TCIU interrupt request signal timing. Figure 12.73
shows timing for the TCFV flag of TSR4 due to underflow in complementary PWM mode, as well
as TCIV interrupt request signal timing.
Overflow
signal
TCNT
(underflow)
TCNT
input clock
φ
TCFV flag
TCIV interrupt
H'FFFF H'0000

Figure 12.71 TCIV Interrupt Setting Timing