AT52SC1283J datasheet(16/52 Pages) ATMEL

16 / 52 page

3530B–STKD–2/4/05

AT52SC1283J/1284J [Preliminary]

6.27

Erase Suspend/Resume Flowchart

Erase

Completed

Read Array

Data

Start

Read Status

SR7 =

SR6 =

Erase

Resumed

Done?

Read

or Program?

Write 70,

Any Address

(Read Status)

Write B0,

Any Address

(Erase Suspend)

Write D0,

Any Address

(Erase Resume)

Write FF

(Read Array)

Yes

Program

Loop

Write 70H

Any Address

within

the Same Plane

(Read Status)

6.28

Erase Suspend/Resume Procedure

Bus

Operation

Command

Comments

Write

Erase

Suspend

Data = B0

Addr = Any address within the

Same Plane

Write

Read

Status

Data = 70

Addr = Any address

Read

None

Status register data: Toggle CE

OE to update status register

Addr = Any address within the

Same Plane

Idle

None

Check SR7

1 = WSM Ready

0 = WSM Busy

Idle

None

Check SR6

1 = Erase suspended

0 = Erase completed

Write

Read or

Program

Data = FF or 40

Addr = Any address

Read or

Write

None

Read or program data from/to

sector other than the one being

erased

Write

Program

Resume

Data = D0

Addr = Any address

If the Suspended Plane was placed in Read mode or a

Program loop:

Write

Read

Status

Return Plane to Status mode:

Data = 70

Addr = Any address within the

Same Plane

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