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


NUC230-YE1N Datasheet(Fiches technique) 82 Page - Nuvoton Technology Corporation

Numéro de pièce NUC230-YE1N
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 

 82 page
background image
NUC100/120xxxDN
Aug 31, 2015
Page 82 of 107
Rev 1.01
I
2C Serial Interface Controller (I2C)
6.17
6.17.1
Overview
I
2C is a two-wire, bidirectional serial bus that provides a simple and efficient method of data
exchange between devices. The I
2C standard is a true multi-master bus including collision
detection and arbitration that prevents data corruption if two or more masters attempt to control
the bus simultaneously.
Data is transferred between a Master and a Slave. Data bits transfer on the SCL and SDA lines
are synchronously on a byte-by-byte basis. Each data byte is 8-bit long. There is one SCL clock
pulse for each data bit with the MSB being transmitted first, and an acknowledge bit follows each
transferred byte. Each bit is sampled during the high period of SCL; therefore, the SDA line may
be changed only during the low period of SCL and must be held stable during the high period of
SCL. A transition on the SDA line while SCL is high is interpreted as a command (START or
STOP). Please refer to Figure 6-17 for more detailed I
2C BUS Timing.
tBUF
STOP
SDA
SCL
START
tHD;STA
tLOW
tHD;DAT
tHIGH
tf
tSU;DAT
Repeated
START
tSU;STA
tSU;STO
STOP
tr
Figure 6-17 I
2C Bus Timing
The device’s on-chip I2C logic provides a serial interface that meets the I2C bus standard mode
specification. The I
2C port handles byte transfers autonomously. To enable this port, the bit ENS1
in I2CON should be set to '1'. The I
2C hardware interfaces to the I2C bus via two pins: SDA and
SCL. Pull-up resistor is needed for I
2C operation as the SDA and SCL are open drain pins. When
I/O pins are used as I
2C ports, user must set the pins function to I2C in advance.




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