Moteur de recherche de fiches techniques de composants électroniques
Selected language     French  ▼
Nom de la pièce
         Description


NUC120-LB2E Datasheet(Fiches technique) 48 Page - Nuvoton Technology Corporation

Numéro de pièce NUC120-LB2E
Description  ARM® Cortex®-M 32-bit Microcontroller
Télécharger  107 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Fabricant  NUVOTON [Nuvoton Technology Corporation]
Site Internet  http://www.nuvoton.com
Logo 

 48 page
background image
NUC100/120xxxDN
Aug 31, 2015
Page 48 of 107
Rev 1.01
nRESET Reset
6.2.2.1
The nRESET reset means to generate a reset signal by pulling low nRESET pin, which is an
asynchronous reset input pin and can be used to reset system at any time. When the nRESET
voltage is lower than 0.2 VDD and the state keeps longer than 36 us (glitch filter), chip will be
reset. The nRESET reset will control the chip in reset state until the nRESET voltage rises above
0.7 VDD and the state keeps longer than 36 us (glitch filter). The RSTS_RESET (RSTSRC[1]) will
be set to 1 if the previous reset source is nRESET reset. Figure 6-3 shows the nRESET reset
waveform.
SS
nRESET
0.2 VDD
0.7 VDD
nRESET Reset
SS
36 us
36 us
Figure 6-3 nRESET Reset Waveform
Power-On Reset (POR)
6.2.2.2
The Power-on reset (POR) is used to generate a stable system reset signal and forces the
system to be reset when power-on to avoid unexpected behavior of MCU. When applying the
power to MCU, the POR module will detect the rising voltage and generate reset signal to system
until the voltage is ready for MCU operation. At POR reset, the RSTS_POR (RSTSRC[0]) will be
set to 1 to indicate there is a POR reset event. The RSTS_POR (RSTSRC[0]) bit can be cleared
by writing 1 to it. Figure 6-4 shows the waveform of Power-On reset.
VDD
VPOR
Power On
Reset
0.1V
Figure 6-4 Power-on Reset (POR) Waveform
Low Voltage Reset (LVR)
6.2.2.3
If the Low Voltage Reset function is enabled by setting the Low Voltage Reset Enable Bit
LVR_EN (BODCR[7]) to 1, after 100us delay, LVR detection circuit will be stable and the LVR
function will be active. Then LVR function will detect AVDD during system operation. When the




Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47  48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63  64  65  66  67  68  69  70  71  72  73  74  75  76  77  78  79  80  81  82  83  84  85  86  87  88  89  90  91  92  93  94  95  96  97  98  99  100   ...More


Datasheet Download




Lien URL

AllDATASHEET vous a-t-il été utile ?   [ DONATE ]  

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Favoris   |   Echange de liens   |   Fabricants
All Rights Reserved © Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  , Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp  |   Russian : Alldatasheetru.com
Korean : Alldatasheet.co.kr   |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com  |   Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl