Multiple industry organizations such as JEDEC and the Small Form Factor Special Interest Group (SFF-SIG) are actively involved in standardizing memory devices for today’s Embedded Systems. Standardization brings the embedded computer of consistent availability from multiple suppliers, which helps OEMs accelerate time to market while reducing overall system cost and project risk. ECC has become a mainstay in embedded systems. However, the JEDEC membership initially did not recognize the need to accommodate ECC when it was developing the DDR2 specification on the SODIMM form factor because most laptop chipsets did not support ECC at the time. Seeing the need for ECC that could be implemented on faster DDR2 memory modules in embedded systems, Virtium sponsored the embedded computer specification within JEDEC, which has been extended now to DDR3 and DDR4 modules.
refer to: http://embedded-computing.com/articles/ruggedization-memory-module-design/
