Datasheet

Section 9 16-Bit Timer Pulse Unit (TPU)
Rev.7.00 Dec. 24, 2008 Page 329 of 698
REJ09B0074-0700
TCFV Flag/TCFU Flag Setting Timing: Figure 9.40 shows the timing for setting of the TCFV
flag in TSR by overflow occurrence, and TCIV interrupt request signal timing. Figure 9.41 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 9.40 TCIV Interrupt Setting Timing
Underflow
signal
TCNT
(underflow)
TCNT
input clock
H'0000 H'FFFF
TCFU flag
TCIU interrupt
φ
Figure 9.41 TCIU Interrupt Setting Timing