H8S-2345 Datasheet, PDF (383/927 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer

Section 9 16-Bit Timer Pulse Unit (TPU)
TCFV Flag/TCFU Flag Setting Timing: Figure 9.44 shows the timing for setting of the TCFV
flag in TSR by overflow occurrence, and TCIV interrupt request signal timing.
Figure 9.45 shows the timing for setting of the TCFU flag in TSR by underflow occurrence, and
TCIU interrupt request signal timing.
φ
TCNT input
clock
TCNT
(overflow)
Overflow
signal
TCFV flag
TCIV interrupt
H'FFFF
H'0000
Figure 9.44 TCIV Interrupt Setting Timing
φ
TCNT
input clock
TCNT
(underflow)
Underflow signal
H'0000
H'FFFF
TCFU flag
TCIU interrupt
Figure 9.45 TCIU Interrupt Setting Timing
Rev. 4.00 Feb 15, 2006 page 359 of 900
REJ09B0291-0400