Texas Instruments AM335 Series Technical Reference Manual

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E E1 1U512 bytes 512 bytes
P E E512 bytes 512 bytes 1 1
U E E512 bytes 512 bytes
P E E512 bytes 512 bytes
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Data0 Data1 Unprotected (pooled) Ecc0 Ecc1
Pooled page spares
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Data0 Data1 Protected (pooled) Ecc0 Ecc1
Pooled page spares
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0 1
0
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P E
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Spares covered by ECC0.
All ECC at the end (of page).
Pooled spares
Spares not covered by ECC.
All ECC at the end.
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Data0 Data1 Unprotected (pooled)
Pooled page spares
0 1 inactiveRead 9 U E
Mode Size0 Size1
Pooled spares
Spares not covered by ECC.
All ECC at the end, left-padded.
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Pooled page spares
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0 1
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P E
Mode Size0 Size1
Pooled spares
Spares covered by ECC0.
All ECC at the end, left-padded.
Pad Pad
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Ecc0 Ecc1Pad Pad
Sector data Sector data
Sector data Sector data
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Sector data Sector data
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7.1.3.3.12.3.3.2 Pooled Spare Mapping
In these schemes (Figure 7-39), the spare area is pooled for the page.
• The ECC of each sector is aligned at the end of the spare area.
• The non-ECC spare data may or may not be covered by the ECC of sector 0
Figure 7-39. NAND Page Mapping and ECC: Pooled Spare Schemes
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SPRUH73H–October 2011–Revised April 2013 Memory Subsystem
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Texas Instruments AM335 Series Specifications

General

Brand	Texas Instruments
Model	AM335 Series
Category	Computer Hardware
Language	English