Inter-Integrated Circuit是什么意思

Inter-Integrated Circuit (I2C)是一种串行通信协议，用于在不同的电路板和芯片之间传输数据。它由飞利浦公司（现在的恩智浦半导体）开发，有时也被称为“二线制串行总线”。I2C支持多主机和多从机的连接，可以在相对较短的距离内进行通信，通常用于连接各种传感器、存储器和其他外围设备。

相关问题

Inter－Integrated Circuit

Inter-Integrated Circuit (I2C) is a two-wire serial communication protocol developed by Philips Semiconductors (now NXP Semiconductors) in the 1980s. It is commonly used for communication between integrated circuits and peripherals in embedded systems.

The I2C protocol uses a master-slave architecture, where one master device initiates communication with one or more slave devices. The master device generates clock signals and initiates data transfers, while the slave devices respond to the master's commands.

The two wires used for communication are called the serial data line (SDA) and the serial clock line (SCL). The SDA line carries the data being transmitted, while the SCL line carries the clock signal that synchronizes the data transfer.

I2C supports multiple data transfer modes, including standard mode (100 kbit/s), fast mode (400 kbit/s), and high-speed mode (3.4 Mbit/s). It also supports multi-master communication, where multiple master devices can communicate with the same set of slave devices.

The I2C protocol is widely used in various applications, including sensors, LCD displays, EEPROMs, and other devices in embedded systems.

软件iic和硬件iic分别是什么意思

IIC（Inter-Integrated Circuit）总线是一种串行通信协议，用于在电路板和芯片之间传输数据。软件IIC是指使用软件实现的IIC协议，通常通过GPIO口模拟IIC总线来进行通讯。

硬件IIC是指使用硬件电路实现的IIC协议，通常由专用的IIC接口电路实现。相比软件IIC，硬件IIC通信速度更快，更可靠，但需要更多的硬件支持。在一些需要高速通讯的场合，硬件IIC更为常用。