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Displaying 1 - 3 of 3 documents.

Title	Document #	Date
Addendum No. 1 to JESD251 - OPTIONAL x4 QUAD I/O WITH DATA STROBE	JESD251-1.01	Sep 2021
This purpose of the addendum is to add an optional 4-bit bus width (x4) to JESD251, xSPI standard. The xSPI interface currently supports a x1 interface that acts as a bridge to legacy SPI functionality as well as the x8 interface intended to achieve dramatically higher bus performance than legacy SPI memory implementations. Item 1775.15. This is an editorial revision to JESD251-1, October 2018 Committee(s): JC-42.4 Free download. Registration or login required.
Secure Serial Flash Bus Transactions Release Number: Version 1.0	JESD254	Dec 2022
This standard describes SPI bus transactions intended to support Secure Flash operation on a serial memory device. The on-chip SFDP database described in JESD216 has been revised to include details about the secure transactions. This ballot does not describe the SFDP revisions or the secure packet structure. Patents(): Infineon- US 10868679B1 and Micron- US 9009394B2 Committee(s): JC-42, JC-42.4 Free download. Registration or login required.
SPI Safety Extensions (CRC) for Non Volatile SPI Flash Memories (QPI and xSPI)	JESD255	Mar 2024
The JESD255 document defines CRC modes supported with 8-bit aligned and 16-bit aligned data transactions. It is limited to logical bus transactions and does not cover the electrical properties of the IO bus. Committee(s): JC-42, JC-42.4 Free download. Registration or login required.

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