參數(shù)資料
型號: NAND08GW3B2CZL1F
廠商: NUMONYX
元件分類: PROM
英文描述: 1G X 8 FLASH 3V PROM, 25000 ns, PBGA52
封裝: 12 X 17 MM, 1 MM PITCH, LEAD FREE, LGA-52
文件頁數(shù): 44/72頁
文件大?。?/td> 1919K
代理商: NAND08GW3B2CZL1F
NAND04G-B2D, NAND08G-BxC
Software algorithms
9.5
Error correction code
The user must implement an error correction code (ECC) to identify and correct errors in the
data stored in the NAND flash memories. For every 2048 bits in the device, the
implementation of 22 bits of ECC (16 bits for line parity plus 6 bits for column parity) is
required.
Figure 23.
Error detection
New ECC generated
during read
XOR previous ECC
with new ECC
All results
= zero?
22 bit data = 0
YES
11 bit data = 1
NO
1 bit data = 1
Correctable
Error
ECC Error
No Error
ai08332
>1 bit
= zero?
YES
NO
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