Slave Select (SS)
makerSS is a digital signal line used for enabling a slave device in SPI communication.
expanded
Slave Select (SS) is a control line in the Serial Peripheral Interface (SPI) protocol, which designates when a slave device is active and can communicate with the master device. In real-world applications, the SS line is managed by the master device and ensures that only one slave on a shared bus is activated at any given time, preventing data collision.
examples
In a system with multiple temperature sensors using SPI, the SS line is used to select a specific sensor for data reading.
Commonly used in industrial automation systems where multiple sensors are integrated using SPI for monitoring and control applications.
An SS line is utilized in an SPI-based LCD module to activate the display for data update.
Typically found in embedded systems where multiple peripherals, such as displays and memory devices, communicate over a shared SPI bus.