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Posts tagged SPI

Synonyms: serial-peripheral-interface MISO

Anything about the SPI (Serial Peripheral Interface) standard hardware interface and its protocols.

SPI is a high-speed serial interface designed to interconnect chips on the same board and is one of the interfaces commonly found in microcontrollers.

Note that SPI is a de-facto standard which is only partially specified, so there is quite a lot of variability between interfaces that claim to be SPI-compliant.
Tag Wiki

SPI interface on Wikipedia.

Introduction to SPI Interface (by Analog Devices) (also on PDF).

Interface signal names: 1

  • SCLK = Serial CLocK
  • MISO = Master-In, Slave-Out
  • MOSI = Master-Out, Slave-In
  • CS = Chip Select

  1. The original technical terms "master" and "slave" are considered not politically correct by some people, so these acronyms were backronymed by replacing those terms with the words Main and Sub (or Subnode) respectively. ↩

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Q&A Unterminated SPI bus needs expansion board to work properly

I'm supporting a piece of legacy hardware that routes the SPI bus through a set of headers to an expansion board. Since the expansion board doesn't actually use the SPI bus, we simply ignored the ...

1 answer  ·  posted 1y ago by TimH‭  ·  last activity 1y ago by Olin Lathrop‭

Question termination SPI low-power
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Q&A Why do large RAM chips not have a serial interface?

I have a PIC32MZ2048ECG064, a 64-pin 32-bit microcontroller with 512kB RAM. This is not enough for my purposes, I need to extend it by at least 32MB, preferably 64 or 128. I believe this means I ca...

0 answers  ·  posted 2y ago by Keelan‭

Question microcontroller SPI RAM
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Q&A SPI modes difference

What is a difference between SPI stream and memory mapped SPI? PS SPI is a peripheral.

2 answers  ·  posted 2y ago by FrankLEE‭  ·  last activity 2y ago by DavidCary‭

Question SPI
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