SH7709S Datasheet, PDF (448/807 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series

TCNT value
TCOR
TCOR value set to
TCNT during underflow
H'00000000
TCLK
TCPR2
Set TCNT value
Time
ICPI
Figure 12.7 Operation Timing when Using Input Capture Function
(Using TCLK Rising Edge)
12.4 Interrupts
There are two sources of TMU interrupts: underflow interrupts (TUNI) and interrupts when using
the input capture function (TICPI2).
12.4.1 Status Flag Setting Timing
UNF is set to 1 when the TCNT underflows. Figure 12.8 shows the timing.
Pφ
TCNT
Underflow
signal
UNF
TUNI
H'00000000
TCOR value
Figure 12.8 UNF Setting Timing
Rev. 5.00, 09/03, page 404 of 760