M58BF008 datasheet(29/36 Pages) STMICROELECTRONICS

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M58BF008

Figure 15. Erase Suspend & Resume Flowchart and Pseudo Code

Note: 1. PES instruction is not allowed during OBEE operation.

Write 70h

Command

AI02681

Read Status

b7 = 1

YES

b5 = 1

Program Continues

Write FFh

Command

PES instruction (note 1):

– write B0h command

(memory enters read register

state after the PES instruction)

do:

– read status register

(E or G must be toggled)

while b7 = 1

If b6 = 0, Erase completed

(at this point the memory wich

accept only the RD or PER instruction)

RD instruction:

– write FFh command

– one o more data reads

from another block

Write D0h

Command

Read data from

another block

or Program

Start

Write B0h

Command

Erase Complete

Write FFh

Command

Read Data

PG instruction:

– write 40h command

– write Address & Data

PER instruction:

– write D0h command

to resume erasure

– if the program operation completed

then this is not necessary. The device

returns to Read Array as normal

(as if the Program/Erase suspend

was not issued).

YES

b6 = 1

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