By Bob Smith – These days, chip design may seem like an intricately connected jigsaw puzzle, including small, oddly shaped interlocking pieces.
Instead of static parts of a puzzle – typically, 300, 500, 750 or 1,000 pieces – spread across a coffee table, a chip under design has loads of dynamic parts located in a variety of directories or sub-directories found on various computers.
The focal point is the processor, not the center of a well-known and photographed painting or skyline, as is often the case with puzzles.
Ah, but memories are playing almost as big a role as processors, especially in chips slated for mobile multimedia devices with higher bandwidth and performance, and low-cost and power requirements.
Fortunately, things aren’t that dire any longer for engineers worried about a chip’s system yield and reliability. One clever engineering group was motivated to figure this out. It set a goal to implement a DDR memory subsystem that would deliver the highest performance and quality within a small footprint and minimal power consumption. more> http://tinyurl.com/k4evteq