UM1620 datasheet(22/41 Pages) STMICROELECTRONICS

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API specification

UM1620

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DocID024388 Rev 3

The table below lists the Suspend Flag values returned against the Suspend State and the

Flash block status.

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

Assumptions

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

2.6.8

FlashResume()

Description

This function checks if there is any suspended erase or program operation on the C90FL

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

SHADOW_ERS_SUS

The erase operation on

shadow row is in suspended

state.

Read is valid on both main array

space and shadow space.

ERS_SUS_PGM_SUS

The erase-suspended

program operation is in

suspended state.

Only read is valid on both main

array space and shadow row.

Table 27. Suspending state and flag vs. C90FL status

suspendState

EHV

ERS

ESUS

PGM

PSUS

PEAS

suspendFlag

NO_OPERATION

FALSE

PGM_WRITE

FALSE

ERS_WRITE

FALSE

ESUS_PGM_WRITE

FALSE

PGM_SUS

TRUE

FALSE

ERS_SUS

TRUE

FALSE

SHADOW_ERS_SUS

TRUE

FALSE

ERS_SUS_PGM_SUS

TRUE

FALSE

Table 26. suspendState definitions (continued)

Argument

Code

Description

Valid operation after suspend

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