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H8S2245 데이터시트(PDF) 116 Page - Renesas Technology Corp |
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H8S2245 데이터시트(HTML) 116 Page - Renesas Technology Corp |
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116 / 818 page ![]() Section 3 MCU Operating Modes Rev.3.00 Mar. 26, 2007 Page 74 of 772 REJ09B0355-0300 Bit 6—Reserved: Read-only bit, always read as 0. Bits 5 and 4—Interrupt Control Mode 1 and 0 (INTM1, INTM0): These bits select the control mode of the interrupt controller. For details of the interrupt control modes, see section 5.4.1, Interrupt Control Modes and Interrupt Operation. Bit 5 Bit 4 INTM1 INTM0 Interrupt Control Mode Description 0 0 0 Control of interrupts by I bit (Initial value) 1 1 Control of interrupts by I bit, U bit, and ICR 10 — Setting prohibited 1 — Setting prohibited Bit 3—NMI Edge Select (NMIEG): Selects the valid edge of the NMI interrupt input. Bit 3 NMIEG Description 0 An interrupt is requested at the falling edge of NMI input (Initial value) 1 An interrupt is requested at the rising edge of NMI input Bits 2 and 1—Reserved: Read-only bits, always read as 0. Bit 0—RAM Enable (RAME): Enables or disables the on-chip RAM. The RAME bit is initialized when the reset status is released. It is not initialized in software standby mode. Bit 0 RAME Description 0 On-chip RAM is disabled 1 On-chip RAM is enabled (Initial value) Note: When the DTC is used, the RAME bit should not be cleared to 0. |
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