UM1653 datasheet(21/45 Pages) STMICROELECTRONICS

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UM1653

NAND driver firmware modules

Table 11. SBLK_NAND_WearLeveling

Function name

SBLK_NAND_WearLeveling.

Prototype

uint16_t SBLK_NAND_WearLeveling (uint8_t ZoneNumber)

Behavior description

Builds the Look Up Table According to the Wear Count.

Input parameter

ZoneNumber: Zone Number.

Output parameter

Status of SBLK_NAND_WearLeveling. This parameter can be:

– NAND_OK: when the NAND wear leveling is successful

– NAND_FAIL: when NAND fails to wear leveling.

Table 12. LBLK_NAND_WearLeveling

Function name

LBLK_NAND_WearLeveling.

Prototype

uint16_t LBLK_NAND_WearLeveling (uint8_t ZoneNumber)

Behavior description

Builds the Look Up Table According to the Wear Count.

Input parameter

ZoneNumber: Zone Number.

Output parameter

Status of LBLK_NAND_WearLeveling. This parameter can be:

– NAND_OK: when the NAND wear leveling is successful

– NAND_FAIL: when NAND fails to wear leveling.

Table 13. NAND_GetFreeBlock

Function name

NAND_GetFreeBlock.

Prototype

uint16_t NAND_GetFreeBlock (void)

Behavior description

Looks for a free Block for data exchange from Look Up Table.

Input parameter

None

Output parameter

Logical Block Number of free Block.

Table 14. SBLK_NAND_ReadSpareArea

Function name

SBLK_NAND_ReadSpareArea.

Prototype

SPARE_AREA SBLK_NAND_ReadSpareArea (uint32_t address)

Behavior description

Page Number in multiple of 512 Byte per Page.

Input parameter

address: Corresponding Page Number of Spare Area to be read.

Output parameter

SPARE AREA after reading.

Table 15. LBLK_NAND_ReadSpareArea

Function name

LBLK_NAND_ReadSpareArea.

Prototype

LBLK_SPARE_AREA LBLK_NAND_ReadSpareArea (uint32_t address)

Behavior description

Page Number in multiple of 512 Byte per Page.

Input parameter

address: Corresponding Page Number of Spare Area to be read.

Output parameter

LBLK_SPARE_AREA after reading.

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