Editor's note: This is a great article by Ed Sperling at Semiconductor Engineering, so I have highlighted it here. Cache coherency in modern SoCs is discussed toward the middle of the article. -Kurt
Memory Choices Grow
Memory is emerging as the starting point for SoCs, adding more confusion to already complex designs.
NOVEMBER 24TH, 2015 - BY: ED SPERLING
Memory is becoming one of the starting points for SoC architectures, evolving from a basic checklist item that was almost always in the shadow of improving processor performance or lowering the overall power budget. In conjunction with that shift, chipmakers must now grapple with many more front-end decisions about placement, memory type and access prioritization.