UM1634 datasheet(24/43 Pages) STMICROELECTRONICS

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API specification

UM1634

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DocID024601 Rev 3

The values of EHV, ERS, ESUS, PGM, PSUS and PEAS represent the C90FL status at the

entry of FlashSuspend;

0: Logic zero; 1: Logic one; X: Do-not-care

Note:

Since there are two Flash banks in SPC564Axx, user can perform following operations in

respective blocks:

— Erase can be suspended in any of the LAS blocks from 0 to 9 and program can be

performed on block 10 and block11 of LAS or vice-versa.

— Erase can be suspended in MAS block 0 and program can be performed in MAS block 1

or vice-versa.

— Erase can be suspended in any of the LAS or MAS blocks and program can be

performed in HAS blocks or vice-versa.

— LAS and MAS blocks can be programmed or erased simultaneously without any suspend

operation.

Assumptions

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

3.6.8

FlashResume()

Description

The 'FlashResume()' API checks if there is any suspended erase or program operation on

the C90FL module, and resumes the suspended operation if there is any.

Prototype

UINT32 FlashResume (PSSD_CONFIG pSSDConfig,

UINT8 *resumeState);

Arguments

SHADOW_ERS_SUS

TRUE

FALSE

ERS_SUS_PGM_SUS

TRUE

FALSE

Table 24. Suspending state and flag vs. C90FL status (continued)

suspendState

EHV

ERS

ESUS

PGM

PSUS

PEAS

suspendFlag

Table 25. Arguments for FlashResume()

Argument

Description

Range

pSSDConfig

Pointer to the SSD

Configuration Structure.

The values in this structure are chip-dependent.

Please refer to Section 3.3 for more details.

resumeState

Indicate the resume state of

C90FL module after the

function being called.

All return values are listed in Table 26.

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