Moteur de recherche de fiches techniques de composants électroniques |
|
NUC230-LB1E Fiches technique(PDF) 82 Page - Nuvoton Technology Corporation |
|
NUC230-LB1E Fiches technique(HTML) 82 Page - Nuvoton Technology Corporation |
82 / 107 page 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. |
Numéro de pièce similaire - NUC230-LB1E |
|
Description similaire - NUC230-LB1E |
|
|
Lien URL |
Politique de confidentialité |
ALLDATASHEET.FR |
ALLDATASHEET vous a-t-il été utile ? [ DONATE ] |
À propos de Alldatasheet | Publicité | Contactez-nous | Politique de confidentialité | Echange de liens | Fabricants All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |