UM1618 datasheet(8/51 Pages) STMICROELECTRONICS

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API specification

UM1618

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DocID024371 Rev 3

The type definition for the structure is given below.

typedef struct _c55_ssd_config

{

UINT32 c55RegBase;

UINT32 mainArrayBase;

BLOCK_INFO lowBlockInfo;

BLOCK_INFO midBlockInfo;

BLOCK_INFO highBlockInfo;

UINT32 nLargeBlockNum;

UINT32 n8KBlockNum;

UINT32 uTestArrayBase;

BOOL mainInterfaceFlag;

UINT32 programmableSize;

BOOL BDMEnable;

} SSD_CONFIG, *PSSD_CONFIG;

2.4

Context data structure

The Context Data structure is used for storing the context variable values while an

operation is in-progress. The operations that support asynchronous model may

require caching the context data including ‘FlashProgram’, ‘ProgramVerify’,

‘BlankCheck’, ‘CheckSum’, ‘FlashArrayIntegrityCheck’, and

Table 2. SSD configuration structure field definition

Parameter name

Type

Parameter description

c55RegBase

UINT32

The base address of C55 control registers.

mainArrayBase

UINT32

The base address of Flash main array.

lowBlockInfo

BLOCK_INFO

Block info of the low address space. It includes

information of this block space based on different block

sizes.

midBlockInfo

BLOCK_INFO

Block info of the mid address space. It includes

information of this block space based on different block

sizes.

highBlockInfo

BLOCK_INFO

Block info of the high address space. It includes

information of this block space based on different block

sizes.

nLargeBlockNum

UINT32

Number of blocks of the large address space (128K or

256K).

uTestArrayBase

UINT32

The base address of the UTest block.

mainInterfaceFlag

BOOL

The flag to select main interface or not.

programmableSize

UINT32

The maximum programmable size of the C55 Flash

according to specific interface.

BDMEnable

BOOL

The debug mode selection. User can enable/disable

debug mode via this input argument.

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