Re: [PATCH v8 00/28] mtd: spi-nor-core: add xSPI Octal DTR support

On 02/04/21 06:28PM, Sean Anderson wrote:

On 4/1/21 3:31 PM, Pratyush Yadav wrote:

...

Hi,

This series adds support for octal DTR flashes in the SPI NOR framework,

As an overall question, is this the same as "DDR" mode?

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DDR is "Double Data Rate" which implies that the "double" part only refers to the data phase. DTR is "Double Transfer Rate" which means the "double" part refers to all 3 (command, address, data) phases.

The underlying concept is the same: transfer data twice per clock cycle.