Download>Subject> Collection of Serial Communication Basics (Part 2)

Collection of Serial Communication Basics (Part 2)

For electronic engineers, serial communication is a familiar term. When it comes to serial communication, many people first think of serial port communication, but in fact, serial port communication indicates an application of serial communication. For computer communication, serial communication is relative to parallel communication. Serial port communication, I2C communication, SPI communication, 485 communication, etc. are all serial communications. Serial communication refers to the use of a data line to transmit data one bit at a time, and each bit of data occupies a fixed length of time. It only needs a few lines to exchange information between systems, which is particularly suitable for long-distance communication between computers and computers, and computers and peripherals.

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Features of IIC, IIS, SPI, UART, USB and other interfaces
Points it Requires : 1 Type:Application DocumentsUploader:lamasDate:2013-09-29
Introduction: IIC bus1. I2C bus terminology (1) Transmitter Transmitter: This device sends data to the bus. (2) Receiver Receiver: This device receives data from the bus. (3) Master Host: This device starts a transmission, generates clocks, and terminates transmissions. Slave: This device is assigned an address by the master. (4) Slave Note: A transmitter can be either a master or a slave. The same is true for a receiver. 2. Start condition & stop condition 3. Data transfer Each byte placed on the SDA line must be 8 bits long. Each byte must be followed by an acknowledge bit. Data is transferred starting with the high byte (MSB). During data transfer, the start condition (S) is first, followed by the slave address. Data transfer is always terminated by a stop condition (P) generated by the master. 4. Acknowledgement Acknowledge that the associated clock pulse is generated by the master. During the acknowledgement clock pulse (HIGH), the transmitter releases the SDA line (becomes HIGH) and the receiver outputs LOW. 5. Software reset To avoid erroneous operation after power-on, input the following signal. In addition, when a communication interruption (microprocessor reset, etc.) occurs, the following signal is usually output. 1 6. I/O electrical characteristics & timing 7. Slave address The slave address includes a fixed address of 110010. The only value that needs to be set for the chip is set through the ADR terminal. Therefore, ADR must be connected to VDD or VSS, and can also be used as a switch control. The 8th bit is the read/write bit, 0 means transmitting (writing) data, and 1 means receiving (reading) data. 2 8. Address register There are 13 internal registers in total, and the upper 4 bits of all address registers are invalid. 9. Data register 10. Command format (1). Single write data (2). Single read data 3 (3). Continuous write data (4). Continuous read data 4 ……
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UART Design Reference for Software Designers
Points it Requires : 1 Type:Application DocumentsUploader:nkyqslDate:2014-03-05
Introduction:UART Design Reference for Software Designers
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Electronic Components Handbook: UART Communications
Points it Requires : 1 Type:PaperUploader:justyouandmehrDate:2018-09-03
Introduction:Electronic Components Handbook: UART Communications
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Serial Communication (UART) Tutorial PPT Materials
Points it Requires : 1 Type:Application DocumentsUploader:huhuhah0009Date:2013-09-22
Introduction:Serial communication: The communication mode in which each bit of information is transmitted in sequence is called serial communication. The characteristics of serial communication are: data bit transmission, transmission is carried out in bit order, at least one transmission line is required to complete, low cost but slow transmission speed. The distance of serial communication can be from a few meters to several kilometers. According to the transmission direction of information, serial communication can be further divided into simplex, half-duplex and full-duplex.
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SPI UART I2C CAN comparison (I carefully sorted it out, I hope you
Points it Requires : 1 Type:Application DocumentsUploader:jujuyaya222Date:2013-09-29
Introduction: SPI UART I2C CAN Compare several commonly used bus standards (UART, SPI, I2C, CAN) and introduce UARTUniversival Asychronous Receiver/Transmitter (Universal Asynchronous Serial Port). UART is a more common data transmission method (i.e. Start Bit + Data + Check + Stop Bit), and the data format of Rx and Tx in the COM port is UART. UART and RS232 are two asynchronous data transmission standards. COM1 and COM2 in the computer are both RS232 serial communication standard interfaces. When the Uart interface is connected to the PC, it is necessary to connect the RS232 level conversion circuit. UART uses the transmit data line TXD and the receive data line RXD to transmit data. Reception and transmission can be performed separately or simultaneously. The format of its transmitted data has strict regulations. Each data is transmitted in the same bit string form. Each serial data consists of a start bit, a data bit, a parity bit and a stop bit. The time from the start bit to the end of the stop bit is called a frame, that is, a complete communication format of a character. SPISerial Perheral Interface is a full-duplex synchronous serial interface standard. The two parties of serial communication use four wires for communication. These four wires are: chip select signal, I/O clock, serial input, and serial output. This interface is fast and efficient, and it is simpler to operate than I2C. The wiring is also simpler. TLC2543 provides SPI interface. ICInter-Integrated Circuit (between integrated circuits), I2C bus is a two-wire bidirectional serial bus developed by PHILIPS for connecting microcontrollers and their peripherals. The I2C bus originated in the 1980s and was originally developed for audio and video equipment. Today, it is mainly used in server management, including the communication of individual component status. For example, administrators can query each component to manage the system configuration or grasp the functional status of components, such as power supply and system fan. Multiple parameters such as memory, hard disk, network, system temperature, etc. can be monitored at any time, increasing the security of the system...
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The principles, differences and applications of the three serial buses SPI, I2C and UART
Points it Requires : 1 Type:Application DocumentsUploader:baona2014Date:2014-12-27
Introduction:The principles, differences and applications of the three serial buses SPI, I2C and UART
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Serial communication interface technology
Points it Requires : 1 Type:Application DocumentsUploader:hellopinkgirlsDate:2013-09-29
Introduction: Serial communication interface technology,Serial communication interface technology...
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Introduction to the basic principles of serial communication
Points it Requires : 1 Type:Application DocumentsUploader:lamasDate:2018-04-02
Introduction: Introduction to the basic principles of serial communication and serial communication data.
ppt
Embedded MCU serial communication technology (UART&SIO&IIC)
Points it Requires : 1 Type:Application DocumentsUploader:crazyjacksonDate:2013-09-29
Introduction: Embedded MCU serial communication technology (UART&SIO&IIC), MCU serial communication technology (SIO&UART&IIC)……
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Serial communication circuit
Points it Requires : 1 Type:Application DocumentsUploader:电子爱好者IKDate:2013-09-22
Introduction:Serial Communication

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