A three-wire bus facilitates synchronous serial communication between integrated circuits using a clock line, a data input line, and a data output line. Unlike two-wire systems that require complex addressing and bidirectional data pins, a three-wire setup allows simultaneous transmission and reception without bus contention. It is commonly implemented in simple sensor networks and legacy digital audio interfaces.
The DAC uses a standard TWB, so just hook up the clock, data in, and data out lines to the processor.
Also heard as
- three-wire bus
Related terms
SPI
Serial Peripheral Interface, a synchronous serial communication protocol for short-distance data transfer.
I²C
A two-wire serial communication protocol used to connect low-speed peripherals to a processor.
System bus
A shared communication pathway that links the CPU, memory, and peripherals in a computer.