Serial Peripheral Interface: Difference between revisions

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Line 60: ===Data transmission=== [[File:SPI 8-bit circular transfer.svg\|upright=1.8\|thumb\|A typical hardware setup using two [[shift register]]s to form an inter-chip [[circular buffer]] ~~\|alt=Alternatif text~~]] To begin communication, the SPI master first selects a slave device by pulling its {{Overline\|SS}} low. (The bar above {{Overline\|SS}} indicates it is an [[active low]] signal, so a low voltage means "selected", while a high voltage means "not selected")