EN29LV160B Datasheet, PDF(24/43 Page) Eon Silicon Solution Inc. – 16 Megabit (2048K x 8-bit / 1024K x 16-bit) Flash Memory

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EN29LV160B Datasheet, PDF (24/43 Pages) Eon Silicon Solution Inc. – 16 Megabit (2048K x 8-bit / 1024K x 16-bit) Flash Memory

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Flowchart 7a. In-System Sector Protect Flowchart

START

PLSCNT = 1

RESET# = VID

Wait 1 Î¼s

Temporary Sector

Unprotect Mode

First Write

Cycle =

60h?

Yes

Set up sector

address

Sector Protect: Write 60h

to sector addr with

A6 = 0, A1 = 1, A0 = 0

Increment

PLSCNT

Wait 150 Î¼s

Verify Sector Protect:

Write 40h to sector

address with

A6 = 0, A1 = 1, A0 = 0

Wait 0.4 Î¼s

Read from sector

address with

A6 = 0, A1 = 1, A0 = 0

PLSCNT = 25?

Data = 01h?

Yes

Device failed

Yes

Protect another

Yes

sector?

Remove VID

from RESET#

Sector Protect

Algorithm

Write reset

command

Sector Protect

complete

EN29LV160B

Reset

PLSCNT = 1

This Data Sheet may be revised by subsequent versions

or modifications due to changes in technical specifications.

Rev. I, Issue Date: 2011/10/26

www.eonssi.com

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