220.127.116.11.1. NAND Flash
Each Preloader or Bootloader image occupies an integer number of blocks. A block is the smallest entity that can be erased, so updates to a particular boot image do not impact the other images.
For example for Cyclone® V SoC and Arria® V SoC, a single Preloader image has a maximum size of 64 KB. But it the NAND block is 128 KB, then the Preloader images will need to be located at 128 KB intervals.
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