i2c interrupt pin
时间: 2023-12-20 09:16:10 浏览: 29
The I2C (Inter-Integrated Circuit) protocol is a communication protocol that allows multiple devices to communicate with each other using a two-wire interface. One of the key features of the I2C protocol is the ability to use an interrupt pin to signal the microcontroller when data is available or an error has occurred.
The I2C interrupt pin is typically used to signal the microcontroller that data is ready to be read or written. When a device on the I2C bus has data to transmit, it will pull the interrupt pin low to signal the microcontroller. The microcontroller can then read the data from the device.
Similarly, when the microcontroller wants to transmit data to a device on the I2C bus, it can use the interrupt pin to signal the device that data is available. The device can then read the data from the microcontroller.
In summary, the I2C interrupt pin is an important feature of the I2C protocol that allows devices on the bus to signal the microcontroller when data is available or an error has occurred.