UM1618 datasheet(7/51 Pages) STMICROELECTRONICS

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UM1618

API specification

2.1

General overview

The C55 SSD has APIs to handle the erase, program, erase verify and program verify

operations on the Flash. Apart from these, it also provides the feature for locking specific

blocks and calculating check sum. This SSD also provides four User Test APIs for checking

the Array Integrity and do user margin read check as well as do suspend/resume those

operations. All functions work as asynchronous model for concurrency event support by

invoking ‘FlashCheckStatus’ function to track the on-going status of targeted operation.

2.2

General type definitions

2.3

SSD configuration parameter

The configuration parameter which is used for SSD operations is explained in this section.

The configuration parameters are handled as structure. User should correctly initialize the

fields including c55RegBase, mainArrayBase, uTestArrayBase,, mainInterfaceFlag,

programmableSize and BDMEnable before passing the structure to SSD functions. The rest

of parameters such as lowBlockInfo, midBlockInfo, highBlockInfo and nLargeBlockNum, are

initialized by ‘FlashInit’ automatically and can be used for other purposes of user’s

application.

Table 1. Type definitions

Derived type

Size

C language type description

BOOL

8-bits

unsigned char

INT8

8-bits

signed char

VINT8

8-bits

volatile signed char

UINT8

8-bits

unsigned char

VUINT8

8-bits

volatile unsigned char

INT16

16-bits

signed short

VINT16

16-bits

volatile signed short

UINT16

16-bits

unsigned short

VUINT16

16-bits

volatile unsigned short

INT32

32-bits

signed long

VINT32

32-bits

volatile signed long

UINT32

32-bits

unsigned long

VUINT32

32-bits

volatile unsigned long

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