M28W320CT09GB1T 데이터 시트보기 (PDF) - STMicroelectronics

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M28W320CT09GB1T

32 Mbit (2Mb x16, Boot Block) Low Voltage Flash Memory

STMicroelectronics 

M28W320CT, M28W320CB

Figure 15. Erase Suspend & Resume Flowchart and Pseudo Code

Start

Write B0h

Command

Write 70h

Command

Read Status

Register

NO

b7 = 1

YES

NO

b6 = 1

YES

Erase Complete

Read data from

another block

or

Program/Protection Program

or

Block Protect/Unprotect/Lock

Write D0h

Command

Write FFh

Command

Erase Continues

Read Data

PES instruction:

– write B0h command

do:

– read status register

(E or G must be toggled)

while b7 = 1

If b6 = 0, Erase completed

PER instruction:

– write D0h command to resume

erasure

– if the erase operation completed

then this is not necessary.

The device returns to Read Array as

normal (as if the Program/Erase

suspend was not issued).

AI03542

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