What is the bandwidth of serial communication of single chip microcomputer

For example, if 300 frames of data are transmitted per second, and one frame of data is ten binary numbers, the transmission rate is 300x10=3000 (BPS).

Baud rate can measure the rate of digital signal transmission. Its size is the number of bits of binary number transmitted per second, and the unit is bps. The transmission rate of single chip microcomputer and computer should be consistent.

Digital signal is an eight bit binary number, which can be transmitted by signal line. One scheme is to use a data line to transmit bit by bit in order, and each time 8 bits (a byte) are transmitted, this is serial communication. Another method is to use eight data lines to transmit 8 bits of data at the same time, one byte at a time, which is parallel communication.