28F002BC データシートの表示（PDF） - Intel

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28F002BC

2-MBIT (256K X 8) BOOT BLOCK FLASH MEMORY

Intel 

28F002BC 2-MBIT BOOT BLOCK FLASH MEMORY

E

Start

Write B0H

Read Status Register

0

SR.7 =

1

0

SR.6 =

1

Write FFH

Erase Completed

Read Array Data

Done

No

Reading

Yes

Write D0H

Write FFH

Bus

Operation

Write

Read

Standby

Standby

Write

Read

Write

Command

Comments

Erase

Suspend

Read Array

Erase Resume

Data = B0H

Addr = X

Status Register Data

Toggle CE# or OE#

to Update SRD.

Addr = X

Check SR.7

1 = WSM Ready

0 = WSM Busy

Check SR.6

1 = Erase Suspended

0 = Erase Completed

Data = FFH

Addr = X

Read Array Data from Block

Other Than the One Being

Erased

Data = D0H

Addr = X

Erase Resumed

Read Array Data

Figure 9. Erase Suspend/Resume Flowchart

0578_08

22

PRELIMINARY

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