Arria V Hard Processor System Technical Reference Manual

ID 683011
Date 12/02/2022
Public
Document Table of Contents

A.4.4.2. NAND Flash Devices

The NAND subsystem reserves at least the first 256 KB on the NAND device. If the NAND flash device has blocks greater than 64 KB, then the NAND subsystem reserves the first four blocks on the device. For a NAND device with less than 64 KB block size, the preloader image must be placed in multiple blocks. The NAND subsystem expects to find up to four preloader images on the NAND device. You may have less than four if required. The preloader image should always be at the start of a physical page. Because a block is the smallest area used for erase operation, any update to a particular image does not affect other images.

Figure 144. NAND Flash Image Layout for 64 KB Memory Blocks

Figure 145. NAND Flash Image Layout for 128 KB Memory Blocks
Figure 146. NAND Flash Image Layout for 32 KB Memory Blocks