Spare Page

Spare Page

Unter Spare Page versteht man einen speziellen kleinen Datenbereich (typisch sind 16 oder 64 Byte) bei NAND-Flash-Speichern, welcher zur Speicherung von Zuständen und Zusatzinformationen zu einer Speicherpage verwendet wird.

In einer Spare Page sind üblicherweise folgende Informationen abgelegt:

  • eine Fehlerkorrektur-Prüfsumme
  • eine Bad Block-Markierung
  • eine "Schreibvorgang begonnen"-Markierung
  • eine "Schreibvorgang abgeschlossen"-Markierung

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