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103 暑期嵌入式系統訓練課程 SPI 2014/7/1

103 暑期嵌入式系統訓練課程 SPI 2014/7/1. Outline. SPI 簡介. SPI 簡介 (1). SCLK (SCK) —Serial Clock （自 master 輸出） MOSI/SIMO—Master Output, Slave Input （自 master 輸出） MISO/SOMI—Master Input, Slave Output （自 slave 輸出） SS (SEL) — Slave Select （ 自 master 輸出）. SPI 簡介 (2). 另一種稱呼亦廣泛被使用：

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103 暑期嵌入式系統訓練課程 SPI 2014/7/1

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  1. 103暑期嵌入式系統訓練課程SPI2014/7/1

  2. Outline • SPI簡介

  3. SPI簡介(1) • SCLK(SCK)—Serial Clock（自master輸出） • MOSI/SIMO—Master Output, Slave Input（自master輸出） • MISO/SOMI—Master Input, Slave Output（自slave輸出） • SS(SEL)—Slave Select（自master輸出）

  4. SPI簡介(2) • 另一種稱呼亦廣泛被使用： SCK—Serial Clock（自master輸出） SDI, DI, SI—Serial Data In SDO, DO, SO—Serial Data Out nCS, CS, nSS, STE—Chip Select, Slave Transmit Enable

  5. 時脈極性位元 - CPOL 當時脈極性位元被RESET，SCK 空閒狀態為 LOW。當時鐘極性位元被SET，SCK 空閒狀態為 HIGH。 • 時脈相位位元 - CPHA 當時鐘相位位元被RESET，資料會在第一個 SCK 時脈沿採樣。當時脈相位位元被SET， 資料會在第二個 SCK 時脈沿採樣

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