March 2009
Intermediate to advanced
576 pages
17h 24m
English
Remember when cell phones were all about making calls? Now they’re all about data.As consumers have decided they want to carry their audio, video and photo libraries with them in their handheld devices, the amount of memory these devices require has exploded. The number of ways to store that data has also proliferated. You’ve still got SRAM for cache, DRAM for working storage, and flash and hard disks (HDDs) for more permanent storage. You can use NOR flash for execute-in-place code and NAND flash for data storage. Or you can use NOR with a NAND interface or NAND with a NOR interface. Do you want to use that alone or as a buffer to a hard disk? Portable designers have more and more storage ...