Why do we use 9600 baud rate?

In the serial port context, “9600 baud” means that the serial port is capable of transferring a maximum of 9600 bits per second. The higher the baud rate, the more sensitive the cable becomes to the quality of installation, due to how much of the wire is untwisted around each device.

What is the maximum speed of UART?

UART interfaces have a maximum data rate of around 5 Mbps. There is also some protocol overhead in the form of start, stop, and parity bits. The data rate of a UART interface is similar to that of an I2C interface.

What frequency is 9600 baud?

9600 baud in our case (two states, mark or space) also means 9600 bits per second. Maximum signal frequency is 9600 Hz (if pattern would be all 010101010) Using those 9600 baud, only 9600/10=960 characters per second can be send (each character needs 8 bits, plus one start and one stop bit)

What are the standard baud rates for UART?

One of the more common baud rates, especially for simple stuff where speed isn’t critical, is 9600 bps. Other “standard” baud are 1200, 2400, 4800, 19200, 38400, 57600, and 115200. The higher a baud rate goes, the faster data is sent/received, but there are limits to how fast data can be transferred.

How does UART generate baud rate?

Many UARTs use a divider chain to divide the frequency of a clock signal to generate a set of baud rate clocks used at the sender and receiver. This clock signal (square wave signal) may be created using a crystal oscillator circuit. In most cases, the clock is derived from a small crystal oscillator.

What sampling frequency is ideally expected with the baud rate of 9600 bps?

So the data rate for 9600 baud would be 960 bytes per second. The sampling rate would be the rate the receiver looks at the signal to see if it’s a 1 or a 0 – typically at least 2x the bandwidth (see Nyquist-Shannon sampling theorem), so 19.2kHz.

Why baud rate is used in serial communication?

Which of the following best states the reason that why baud rate is mentioned in serial communication? Explanation: To make two devices compatible with each other baud rate is mentioned in the serial communication so that the transmission becomes easy and error free.