HD6417706 RENESAS [Renesas Technology Corp], HD6417706 Datasheet - Page 369

• Manufacturer Part Number: HD6417706
• Description: Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

12.5
There are two sources of TMU interrupts: underflow interrupts (TUNI) and interrupts when using
the input capture function (TICPI2).
12.5.1
UNF is set to 1 when the TCNT underflows. Figure 12.8 shows the timing.
12.5.2
The status flag can be cleared by writing 0 from the CPU. Figure 12.9 shows the timing.
Peripheral address bus
Interrupts
Status Flag Set Timing
Status Flag Clear Timing
Underflow
TCNT
signal
TUNI
UNF
UNF, ICPF
P
P
Figure 12.9 Status Flag Clear Timing
H'00000000
Figure 12.8 UNF Set Timing
T1
TCR write cycle
TCR address
TCOR value
T2
Rev. 4.00, 03/04, page 323 of 660
T3