Datasheet

Section 10 16-Bit Timer Pulse Unit (TPU)
Rev. 3.00 Sep. 28, 2009 Page 295 of 910
REJ09B0350-0300
(3) TCFV Flag/TCFU Flag Setting Timing
Figure 10.40 shows the timing for setting of the TCFV flag in TSR by overflow occurrence, and
TCIV interrupt request signal timing. Figure 10.41 shows the timing for setting of the TCFU flag
in TSR by underflow occurrence, and TCIU interrupt request signal timing.
Overflow
signal
TCNT
(overflow)
TCNT input
clock
H'FFFF H'0000
TCFV flag
TCIV interrupt
φ
Figure 10.40 TCIV Interrupt Setting Timing
Underflow
signal
TCNT
(underflow)
TCNT
input clock
H'0000 H'FFFF
TCFU flag
TCIU interrupt
φ
Figure 10.41 TCIU Interrupt Setting Timing