Question

What does SPI stand for?

(a) serial parallel interface

(b) serial peripheral interface

(c) sequential peripheral interface

(d) sequential port interface

I got this question in class test.

This intriguing question originated from Serial Port and Serial Peripheral Interface in division Basic Peripherals of Embedded Systems

Answer 1

Correct choice is (b) serial peripheral interface

For explanation: The serial parallel interface bus is a commonly used interface which involves master slave mechanism. The shift registers are worked as master and the slave devices are driven by a common clock.