UM1635 datasheet(8/42 Pages) STMICROELECTRONICS

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API specification

UM1635

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DocID024604 Rev 2

The type definition for the structure is given below.

typedef struct _ssd_config

{

UINT32 c90flRegBase;

UINT32 mainArrayBase;

UINT32 mainArraySize;

UINT32 shadowRowBase;

UINT32 shadowRowSize;

UINT32 lowBlockNum;

UINT32 midBlockNum;

UINT32 highBlockNum;

UINT32 pageSize;

UINT32 BDMEnable;

} SSD_CONFIG, *PSSD_CONFIG;

Note:

The macro value COMPILER_SELECT should be set to

CODE_WARRIOR – if CodeWarrior compiler is used for compiling

DIAB_COMPILER – if Diab compiler is used for compiling

2.4

Callback notification

The Standard Software Driver facilitates the user to supply a pointer to ‘CallBack()’ function

so that time-critical events can be serviced during C90FL2 Standard Software driver

operations. Servicing watchdog timers is one such time critical event. If it is not necessary to

provide the CallBack service, the user is able to disable it by a NULL function macro.

#define NULL_CALLBACK

((void *) 0xFFFFFFFF)

The job processing callback notifications shall have no parameters and no return value.

Table 2. SSD configuration structure field definition

Parameter name

Type

Parameter description

c90flRegBase

UINT32

The base address of C90FL2 and BIU control registers.

mainArrayBase

UINT32

The base address of Flash main array.

mainArraySize

UINT32

The size of Flash main array in byte.

shadowRowBase

UINT32

The base address of shadow row

shadowRowSize

UINT32

The size of shadow row in byte.

lowBlockNum

UINT32

Block number of the low address space.

midBlockNum

UINT32

Block number of the mid address space.

highBlockNum

UINT32

Block number of the high address space.

pageSize

UINT32

The page size of the C90FL2 Flash

BDMEnable

UINT32

Defines the state of background debug mode (enable /disable)

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