What is "CTS"?

"CTS" stands for "Clear To Send" and it is a signal used in serial communication between two devices.

In a typical serial communication setup, one device acts as the transmitter and the other device acts as the receiver. The transmitter sends data to the receiver using a serial data line, while the receiver sends acknowledgement signals to the transmitter using control lines such as CTS.

The CTS signal is used by the receiver to indicate to the transmitter that it is ready to receive data. When the receiver is ready to receive data, it asserts the CTS signal, which signals to the transmitter that it can start transmitting data.

The use of the CTS signal helps to prevent data loss or corruption due to buffer overflows or other issues. By using the CTS signal to control the flow of data, the receiver can ensure that it has enough capacity to receive the data being transmitted, reducing the likelihood of errors or lost data.

The specific characteristics of the CTS signal, such as its voltage level and timing requirements, can vary depending on the specific communication protocol being used.

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