MuxOneNAND2G(KFM2G16Q2A-DEBx)

FLASH MEMORY

MuxOneNAND4G(KFN4G16Q2A-DEBx)

Referring to the diagram for further illustration, when an error happens in the nth page of block 'A' during program operation, copy the data in the 1st ~ (n-1)th page to the same location of block 'B' via data buffer0.

Then copy the nth page data of block 'A' in the data buffer1 to the nth page of block 'B' or any free block. Do not further erase or program block 'A' but instead complete the operation by creating an 'Invalid Block Table' or other appropriate scheme.

Block Replacement Operation Sequence

 

 

{

Block A

1st

 

 

~

 

 

(n-1)th

 

nth

 

 

 

an error occurs.

 

 

 

(page)

 

 

 

 

 

 

 

 

 

 

{

Block B

1st

 

 

~

 

 

(n-1)th

 

nth

 

 

 

 

 

 

 

 

(page)

 

 

 

 

 

 

 

 

1

1

2

Data Buffer0 of the device

Data Buffer1 of the device

(assuming the nth page data is maintained)

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Page 138
Image 138
Samsung KFM2G16Q2A, KFN4G16Q2A warranty Block Replacement Operation Sequence, 1st 1th Nth, Block B