Serial Peripheral Interface: Difference between revisions

Revision as of 05:43, 7 December 2024

Revision as of 16:23, 24 December 2024

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This is particularly popular among SPI ROMs, which have to send a large amount of data, and comes in two variants:<ref name="W25Q16JV">{{cite web |title=W25Q16JV 3V 16M-bit serial flash memory with Dual/Quad SPI |date=12 August 2016 |version=Revision D |publisher=[[Winbond]] |type=data sheet |url=https://www.winbond.com/resource-files/w25q16jv%20spi%20revd%2008122016.pdf |access-date=2017-02-10}}</ref><ref name="D25LQ64">{{cite web |title=D25LQ64 1.8V Uniform Sector Dual and Quad SPI Flash |type=data sheet |date=11 February 2011 |version=version 0.1 |publisher=GigaDevice |url=https://www.sst-ic.com/File/DataSheet/KC909742-1112151725544ed0c4ce-8225-4c46-8d18-b81422086247.pdf |archive-url=https://web.archive.org/web/20170212090900/http://www.sst-ic.com/File/DataSheet/KC909742-1112151725544ed0c4ce-8225-4c46-8d18-b81422086247.pdf |url-status=dead |archive-date=12 February 2017 |access-date=2017-02-10}}</ref>

* Dual read commands sends the sendcommand and address from the main in single mode, and returnreturns the data in dual mode.

* Dual I/O commands sendsends the command in single mode, then sendsends the address and return data in dual mode.

=== Quad SPI ===