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S34ML01G1 Datasheet(数据表) 59 Page - Cypress Semiconductor

部件型号  S34ML01G1
说明  1 Gb/2 Gb/4 Gb, 3 V, SLC NAND Flash for Embedded
下载  71 Pages
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制造商  CYPRESS [Cypress Semiconductor]
网页  http://www.cypress.com
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S34ML01G1 Datasheet(HTML) 59 Page - Cypress Semiconductor

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Document Number: 002-00676 Rev. *V
Page 59 of 71
S34ML01G1
S34ML02G1
S34ML04G1
9. Error Management
9.1
System Bad Block Replacement
Over the lifetime of the device, additional Bad Blocks may develop. In this case, each bad block has to be replaced by copying any
valid data to a new block. These additional Bad Blocks can be identified whenever a program or erase operation reports “Fail” in the
Status Register.
The failure of a page program operation does not affect the data in other pages in the same block, thus the block can be replaced by
re-programming the current data and copying the rest of the replaced block to an available valid block. Refer to Table 24 and
Figure 54 for the recommended procedure to follow if an error occurs during an operation.
Figure 54. Bad Block Replacement
Notes
80. An error occurs on the Nth page of Block A during a program operation.
81. Data in Block A is copied to the same location in Block B, which is a valid block.
82. The Nth page of block A, which is in controller buffer memory, is copied into the Nth page of Block B.
83. Bad block table should be updated to prevent from erasing or programming Block A.
Table 24. Block Failure
Operation
Recommended Procedure
Erase
Block Replacement
Program
Block Replacement
Read
ECC (1 bit / 512+16 byte)
Data
buffer memory of the controller
N page
FFh
Data
FFh
Failure
th
N page
th
Block A
Block B
[80
[81
[82




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