, most modern SoCs have dedicated pins. You will typically see:
A common question: "Can I connect an I2C sensor to an SPMI bus?" spmi vs i2c
I2C is a protocol, meaning devices can only talk or listen one at a time, but not both. It uses an open-drain design with pull-up resistors, which allows multiple "masters" to coexist and makes adding new "slaves" easy—you just give them a unique 7-bit or 10-bit address. 2. What is SPMI? (The Power Specialist) , most modern SoCs have dedicated pins
is famously simple. You can bit-bang it on two GPIO pins in 10 lines of C code. Every microcontroller has at least one hardware I2C peripheral. You can bit-bang it on two GPIO pins in 10 lines of C code
This is where enters the arena.
I2C is a synchronous, serial, bidirectional bus. It operates on a Master-Slave architecture. The Master generates the clock signal (SCL) and initiates communication with a Slave by broadcasting an address byte.