UM1618 datasheet(9/51 Pages) STMICROELECTRONICS

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UM1618

API specification

‘UserMarginReadCheck’. User needs to declare and initialize a context data

structure before passing it to the above SSD functions. Refer to ‘FlashCheckStatus’

to have a quick view of how to initialize the context data. The context data structure

contents can be reviewed at any time during the operation progress (these

information may be useful in some cases), but they must not be changed for any

reason in order to make the operation completes correctly.

The type definition for the structure is given below.

typedef struct _c55_context_data

{

UINT32 dest;

UINT32 size;

UINT32 source;

UINT32 *pFailedAddress;

UINT32 *pFailedData;

UINT32 *pFailedSource;

UINT32 *pSum;

MISR *pMisr;

void* pReqCompletionFn;

} CONTEXT_DATA, *PCONTEXT_DATA;

2.5

Other data structures

Some other data structures used for SSD operation is explained in this section. They are the

structures used for variable declaration in SSD configuration and context data structures or

input argument declaration in some APIs.

Table 3. Context data structure field definitions

Name

Description

dest

The context destination address of an operation

size

The context size of an operation

source

The context source of an operation

pFailedAddress

The context failed address of an operation

pFailedData

The context failed data of an operation

pFailedSource

The context failed source of an operation

pSum

The context sum of an operation

pMisr

The context MISR values of an operation

pReqCompletionFn

Function pointer to the Flash function being checked for status

Table 4. Block information structure field definitions

Name

Type

Definition

n8KBlockNum

UINT32

Number of 8K block.

n16KBlockNum

UINT32

Number of 16K block.

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