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NUC240-LD3E Datasheet(Fiches technique) 45 Page - Nuvoton Technology Corporation

Numéro de pièce NUC240-LD3E
Description  ARM® Cortex®-M 32-bit Microcontroller
Télécharger  107 Pages
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Fabricant  NUVOTON [Nuvoton Technology Corporation]
Site Internet  http://www.nuvoton.com
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 45 page
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NUC100/120xxxDN
Aug 31, 2015
Page 45 of 107
Rev 1.01
System Manager
6.2
6.2.1
Overview
The system manager provides the functions of system control, power modes, wake-up sources,
reset sources, system memory map, product ID and multi-function pin control. The following
sections describe the functions for
System Reset
System Power Architecture
System Memory Map
System management registers for Part Number ID, chip reset and on-chip controllers
reset, and multi-functional pin control
System Timer (SysTick)
Nested Vectored Interrupt Controller (NVIC)
System Control registers
6.2.2
System Reset
The system reset can be issued by one of the events listed below. These reset event flags can be
read from RSTSRC register to determine the reset source. Hardware reset can reset chip through
peripheral reset signals. Software reset can trigger reset through control registers.
Hardware Reset Sources
Power-on Reset (POR)
Low level on the nRESET pin
Watchdog Time-out Reset and Window Watchdog Reset (WDT/WWDT Reset)
Low Voltage Reset (LVR)
Brown-out Detector Reset (BOD Reset)
Software Reset Sources
CHIP Reset will reset whole chip by writing 1 to CHIP_RST (IPRSTC1[0])
MCU Reset to reboot but keeping the booting setting from APROM or LDROM
by writing 1 to SYSRESETREQ (AIRCR[2])
CPU Reset for Cortex
® -M0 core Only by writing 1 to CPU_RST (IPRSTC1[1])
Power-on Reset or CHIP_RST (IPRSTC1[0]) reset the whole chip including all peripherals,
external crystal circuit and BS (ISPCON[1]) bit.
SYSRESETREQ (AIRCR[2]) reset the whole chip including all peripherals, but does not reset
external crystal circuit and BS (ISPCON[1]) bit.




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