UM1618 datasheet(37/51 Pages) STMICROELECTRONICS

37 / 51 page

DocID024371 Rev 3

37/51

UM1618

API specification

Comments

If user uses the alternate interface to get the over program protection status for the Large

address space, the error code C55_ERROR_ALTERNATE is returned to indicate that the

interface does not support this operation.

The blkProtState is bit map allocation and it has the same definition with blkLockState of

‘GetLock’ function. See ‘GetLock’ function for more details.

Assumptions

It assumes that the Flash block is initialized using a ‘FlashInit’ API.

2.8

User Test Mode Functions

2.8.1

FlashArrayIntegrityCheck

Description

This function checks the array integrity of the Flash via main interface. The user specified

address sequence is used for array integrity reads and the operation is done on the

specified blocks. The MISR values calculated by the hardware is compared to the values

passed by the user, if they are not the same, then an error code is returned.

In order to support asynchronous design, this function stores the necessary information to

“pCtxData” (ex: user provided MISR value) and is terminated without waiting for completion

of this operation. User should call ‘FlashCheckStatus’ to check the on-going status of this

function. And once finish, it will do comparison between MISR values provided by user

which is currently stored in “pCtxData” and MISR values generated by hardware and return

an appropriate code according to this compared result.

Prototype

UINT32 FlashArrayIntegrityCheck(PSSD_CONFIG pSSDConfig,

UINT32 lowEnabledBlocks,

UINT32 midEnabledBlocks,

UINT32 highEnabledBlocks,

NLARGE_BLOCK_SEL nLargeEnabledBlocks,

UINT8 breakOption,

UINT8 addrSeq,

PMISR pMisrValue,

PCONTEXT_DATA pCtxData);

UM1618 Datasheet(PDF) 37 Page - STMicroelectronics