What is SPI protocol? Serial peripheral interface protocol is a kind of serial communication protocol that follows the full-duplex communication process for transmitting data. It is a synchronous protocol; whose transmission speed is high. The SPI protocol is also considered a master-slave type protocol because it is very simple and a perfect one for interfacing between microcontrollers and their peripherals. The main purpose of using SPI protocol is two interacting with microprocessor and microcontroller with some memories, like – PROM, EPROM, ADC (analog to digital converter), DAC (digital to analog converter), RTC (Real-time clock), several sensors, memory cards and with other types of microcontrollers.
I2C is a type of serial communication protocol, through which the data is sent bit by bit, with the help of a single wire. The full form of I2C is an inter-integrated circuit or inter IC. This 8-bit serial communication protocol takes the assistance of bus wires, which is: serial data wire (SDA) and serial clock wire (SCL) sending data. I2C is the combination of different types of ICs and it helps the devices for interacting directly with each other through sending data.
What is RS485 protocol?
In March 1988, RS485 protocol was invented, which has the characteristics of both RS-232 and RS-422. It sends data from both directions, following a half-duplex communication mode. This type of protocol consists of various kinds of bused transmitters and receivers.
What is RS422 protocol? Another name of RS-422 is TIA/EIA-422; it provides standard technical support in the electronics industry. The RS422 was introduced mainly to get the higher data rates on serial data communication than the RS-232. So, we can say that the RS422 is an updated version of the RS232 protocol.
In telecommunication, RS 232 kept a great value and was mostly used for the great quality for transmitting data in serial communication. The application of RS-232 was very popular in old days. In this article, we are going to discuss how the RS232 protocol works and various other perspectives of it.
What is serial communication? How serial communication works? Examples of serial communication. Difference between serial and parallel communication.