Unlike Synchronous type I2C slave design need clock to work. This Asynchronous type don’t need base clock . It is very power saving in some application
Application :
- Power manager IC
- Sensor IC
- Software wakeup requirement system
In some particular application, few pin count but still need chip to chip communication. This IP use one wire bi-direction (open drain) to communication. Just like UART , it is consist of one TX and one RX. User can define their own payload freedomly.
All devices are connecting through open-drain pull high bus. Every device can send data to others actively.
Waveform
Application
- Analog IC debug
- MCU program port
- Low pin count IC