SPI

/ˌɛs.piːˈaɪ/ · Noun · Development · Origin: 1985

Definitions

  1. Serial Peripheral Interface — a synchronous full-duplex serial bus using four wires (MOSI, MISO, SCLK, CS) that enables high-speed communication between a master and one or more slave devices.

    In plain English: A fast way for a main chip to talk to attached components using four wires. Unlike I2C, it can send and receive data at the same time, making it better for things that need speed like screens and SD cards.

    Example: "The display needed 40 MHz SPI to hit 60 fps — I2C was way too slow for pushing that many pixels."

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