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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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SH7708 Datenblatt(PDF) 335 Page - Renesas Technology Corp |
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SH7708 Datenblatt(HTML) 335 Page - Renesas Technology Corp |
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335 / 633 page  317 11.4.2 Status Flag Clear Timing The status flag can be cleared by writing a 0 from the CPU. Figure 11.9 shows the timing. P φ Peripheral address bus UNF, ICPF TCR address T1 T2 TCR write cycle T3 Figure 11.9 Status Flag Clear Timing 11.4.3 Interrupt Sources and Priorities The TMU produces underflow interrupts for each channel. When the interrupt request flag and interrupt enable bit are both set to 1, the interrupt is requested. Codes are set in the exception source register (INTEVT) for these interrupts and interrupt handling occurs according to the codes. The relative priorities of channels can be changed using the interrupt controller (see section 6, Interrupt Controller) and section 4, Exception Handling. Table 11.3 lists TMU interrupt sources. Table 11.3 TMU Interrupt Sources Channel Interrupt Source Description Priority 0 TUNI0 Underflow interrupt 0 High 1 TUNI1 Underflow interrupt 1 ↑ 2 TUNI2 Underflow interrupt 2 ↓ 2 TICPI2 Input capture interrupt 2 Low |
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