| 전자부품 데이터시트 검색엔진 |
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H8SX/1663 데이터시트(PDF) 1038 Page - Renesas Technology Corp |
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H8SX/1663 데이터시트(HTML) 1038 Page - Renesas Technology Corp |
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1038 / 1158 page ![]() Section 23 Power-Down Modes Rev.1.00 Jun. 07, 2006 Page 986 of 1102 REJ09B0294-0100 23.7.4 Software Standby Mode Application Example Figure 23.2 shows an example in which a transition is made to software standby mode at the falling edge on the NMI pin, and software standby mode is cleared at the rising edge on the NMI pin. In this example, an NMI interrupt is accepted with the NMIEG bit in INTCR cleared to 0 (falling edge specification), then the NMIEG bit is set to 1 (rising edge specification), the SSBY bit is set to 1, and a SLEEP instruction is executed, causing a transition to software standby mode. Software standby mode is then cleared at the rising edge on the NMI pin. Oscillator I φ NMI NMIEG SSBY NMI exception handling NMIEG = 1 SSBY = 1 SLEEP instruction Software standby mode (power-down mode) Oscillation settling time tOSC2 NMI exception handling Figure 23.2 Software Standby Mode Application Example |
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