JS28F256P30T85 datasheet(90/102 Pages) INTEL

90 / 102 page

1-Gbit P30 Family

April 2005

Intel StrataFlash® Embedded Memory (P30)

Datasheet

Order Number: 306666, Revision: 001

Figure 45.

Erase Suspend/Resume Flowchart

Erase

Completed

Read Array

Data

Read

Program

Loop

Read Array

Data

Start

Read Status

SR[7] =

SR[6] =

Erase

Resumed

Read or

Program?

Done

Write

Idle

Write

Erase

Suspend

Read Array

or Program

None

Program

Resume

Data = 0xB0

Addr = Same partition address as

above

Data = 0xFF or 0x40

Addr = Any address within the

suspended partition

Check SR[7]:

1 = WSM ready

0 = WSM busy

Check SR[6]:

1 = Erase suspended

0 = Erase completed

Data = 0xD0

Addr = Any address

Bus

Operation

Command

Comments

Read

None

Status Register data.

Addr = Same partition

Read or

Write

None

Read array or program data from/to

block other than the one being erased

ERASE SUSPEND / RESUME PROCEDURE

If the suspended partition was placed in

Read Array mode or a Program Loop:

Write 0xB0,

Any Address

(Erase Suspend)

Write 0x70,

Same Partition

(Read Status)

Write 0xD0,

Any Address

(Erase Resume)

Write 0x70,

Same Partition

(Read Status)

Write 0xFF,

Erased Partition

(Read Array)

Write

Read

Status

Data = 0x70

Addr = Any partition address

Write

Read

Status

Return partition to Status mode:

Data = 0x70

Addr = Same partition

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