GD9FS1G8F2AMG datasheet(11/55 Pages) GIGADEVICE

部件名	GD9FS1G8F2AMG

功能描述	Single level cell technology

PDF	55 Pages

Scroll/Zoom	100%

制造商	GIGADEVICE [GigaDevice Semiconductor (Beijing) Inc.]

网页	http://www.gigadevice.com/

标志

11 / 55 page

GD9Fx1GxF2A

5.3 Factory Defect Mapping

The Flash array is not presumed to be pristine, and a number of defects that makes the blocks unusable may be present.

Invalid blocks shall be sorted out from normal blocks by software.

5.3.1. Device Requirements

If a block is defective, the manufacturer shall mark the block as defective by setting the Defective Block Marking, as

shown in Figure of “Area marked in first or last page of block indicating defect”, of the last page of the defective block to a

value of non

‐FFh. The Defective Block Marking is located on the first byte of user data area or the first byte of spare data

area in the pages within a block.

0 1 2

1st page

Last

page

The 1st byte of spare region

Defective Block Marking

Figure 7. Area marked in first or last page of block indicating defect sequential figures

GD9FS1G8F2AMG 数据表(PDF) 11 Page - GigaDevice Semiconductor (Beijing) Inc.