AT52SC1283J datasheet(15/52 Pages) ATMEL

15 / 52 page

3530B–STKD–2/4/05

AT52SC1283J/1284J [Preliminary]

6.25

Program Suspend/Resume Flowchart

Read Status

SR7 =

SR2 =

Read

Data

Program

Completed

Done

Reading

Program

Resumed

Read

Data

Yes

Write FF

(Read Array)

Write D0

Any Address

(Program Resume)

Write FF

(Read

Array)

Start

Write B0

Any Address

(Program Suspend)

Write 70

Any Address

(Read Status)

the Same Plane

within

Suspend Plane

Write 70H

Any Address

within

the Same Plane

(Read Status)

6.26

Program Suspend/Resume Procedure

Bus

Operation

Command

Comments

Write

Program

Suspend

Data = B0

Addr = Sector address to

Suspend (SA)

Write

Read

Status

Data = 70

Addr = Any address within the

Same Plane

Read

None

Status register data: Toggle CE

OE to update status register

Addr = Any address

Idle

None

Check SR7

1 = WSM Ready

0 = WSM Busy

Idle

None

Check SR2

1 = Program suspended

0 = Program completed

Write

Read Array

Data = FF

Addr = Any address within the

Suspended Plane

Read

None

Read data from any sector in the

memory other than the one being

programmed

Write

Program

Resume

Data = D0

Addr = Any address

If the Suspend Plane was placed in Read mode:

Write

Read

Status

Return Plane to Status mode:

Data = 70

Addr = Any address within the

Same Plane

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