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GD9FS1G8F2AMG Folha de dados(PDF) 11 Page - GigaDevice Semiconductor (Beijing) Inc.

Nome de Peças GD9FS1G8F2AMG
Descrição Electrónicos  Single level cell technology
PDF  55 Pages
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Fabricante Electrônico  GIGADEVICE [GigaDevice Semiconductor (Beijing) Inc.]
Página de início  http://www.gigadevice.com/
Logo GIGADEVICE - GigaDevice Semiconductor (Beijing) Inc.

GD9FS1G8F2AMG Folha de dados(HTML) 11 Page - GigaDevice Semiconductor (Beijing) Inc.

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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
0 1 2
1st page
Last
page
The 1st byte of spare region
The 1st byte of spare region
Defective Block Marking
Figure 7. Area marked in first or last page of block indicating defect sequential figures



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