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Moteur de recherche de fiches techniques de composants électroniques |
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NUC220-VA2N Datasheet(Fiches technique) 46 Page - Nuvoton Technology Corporation |
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46 page 
NUC100/120xxxDN Aug 31, 2015 Page 46 of 107 Rev 1.01 Low Voltage Reset Power-on Reset Brown-out Reset Reset Pulse Width 3.2ms WDT/WWDT Reset ~50k ohm @5v Reset Pulse Width 2 system clocks nRESET VDD AVDD CHIP Reset CHIP_RST(IPRSTC1[0]) CPU Reset CPU_RST(IPRSTC1[1]) MCU Reset SYSRESETREQ(AIRCR[2]) BOD_RSTEN(BODCR[3]) Reset Pulse Width 64 WDT clocks Glitch Filter 36 us Software Reset LVR_EN(BODCR[7]) POR_DIS_CODE(PORCR[15:0]) System Reset Figure 6-2 System Reset Resources There are a total of 8 reset sources in the NuMicro ® family. In general, CPU reset is used to reset Cortex ® -M0 only; the other reset sources will reset Cortex® -M0 and all peripherals. However, there are small differences between each reset source and they are listed in Table 6-1. Reset Sources Register POR nRESET WDT LVR BOD CHIP MCU CPU RSTSRC Bit 0 = 1 Bit 1 = 1 Bit 2 = 1 Bit 3 = 1 Bit 4 = 1 Bit 0 = 1 Bit 5 = 1 Bit 7 = 1 CHIP_RST (IPRSTC1[0]) 0x0 - - - - - - - BOD_EN (BODCR[0]) Reload from CONFIG0 Reload from CONFIG0 Reload from CONFIG0 Reload from CONFIG0 - Reload from CONFIG0 Reload from CONFIG0 - BOD_VL (BODCR[2:1]) BOD_RSTEN (BODCR[3]) XTL12M_EN (PWRCON[0]) Reload from CONFIG0 Reload from CONFIG0 Reload from CONFIG0 Reload from CONFIG0 Reload from CONFIG0 Reload from CONFIG0 Reload from CONFIG0 - WDT_EN (APBCLK[0]) 0x1 - 0x1 - - 0x1 - - HCLK_S (CLKSEL0[2:0]) Reload from CONFIG0 Reload from CONFIG0 Reload from CONFIG0 Reload from CONFIG0 Reload from CONFIG0 Reload from CONFIG0 Reload from CONFIG0 - WDT_S 0x3 0x3 - - - - - - |
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