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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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SH7052 Arkusz danych(PDF) 116 Page - Renesas Technology Corp |
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SH7052 Arkusz danych(HTML) 116 Page - Renesas Technology Corp |
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116 / 919 page  90 • Bit 8—NMI Edge Select (NMIE) Bit 8: NMIE Description 0 Interrupt request is detected on falling edge of NMI input (Initial value) 1 Interrupt request is detected on rising edge of NMI input • Bits 7 to 4—IRQ0 to IRQ3 Sense Select (IRQ0S to IRQ3S): These bits set the IRQ0 to IRQ3 interrupt request detection mode. Bits 7 to 4: IRQ0S to IRQ3S Description 0 Interrupt request is detected on low level of IRQ input (Initial value) 1 Interrupt request is detected on falling edge of IRQ input • Bits 3 to 0—Reserved: These bits always read 0. The write value should always be 0. 6.3.3 IRQ Status Register (ISR) ISR is a 16-bit register that indicates the interrupt request status of the external interrupt input pins IRQ0 to IRQ3. When IRQ interrupts are set to edge detection, held interrupt requests can be withdrawn by writing 0 to IRQnF after reading IRQnF = 1. A reset and hardware standby mode initialize ISR but software standby mode does not. Bit: 15 14 13 12 11 10 9 8 —— —— ——— — Initial value: 0 0 0 0 0 0 0 0 R/W: R R R R R R R R Bit: 7 6 5 4 3 2 1 0 IRQ0F IRQ1F IRQ2F IRQ3F — — — — Initial value: 0 0 0 0 0 0 0 0 R/W: R/W R/W R/W R/W R R R R • Bits 15 to 8—Reserved: These bits always read 0. The write value should always be 0. |
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