EN29LV160 EON [Eon Silicon Solution Inc.], EN29LV160 Datasheet - Page 24

• Manufacturer Part Number: EN29LV160
• Description: 16 Megabit (2048K x 8-bit / 1024K x 16-bit) Flash Memory Boot Sector Flash Memory, CMOS 3.0 Volt-only
• Manufacturer: EON [Eon Silicon Solution Inc.]

Flowchart 7a. In-System Sector Protect Flowchart
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
Temporary Sector
Sector Protect
Unprotect Mode
Algorithm
PLSCNT = 25?
Device failed
Increment
PLSCNT
No
Yes
No
No
Sector Protect: Write 60h
to sector addr with
A6 = 0, A1 = 1, A0 = 0
Verify Sector Protect:
Write 40h to sector
address with
A6 = 0, A1 = 1, A0 = 0
Rev. A, Issue Date: 2004/03/30
A6 = 0, A1 = 1, A0
24
Read from sector
Protect another
RESET# = V
Sector Protect
Data = 01h?
from RESET#
Set up sector
PLSCNT = 1
address with
Wait 150 µs
Remove V
Write reset
Wait 0.4 µs
First Write
command
Wait 1 µs
complete
address
Cycle =
START
sector?
60h?
©2003 Eon Silicon Solution, Inc., www.essi.com.tw
Yes
No
Yes
ID
ID
Yes
PLSCNT = 1
Reset
EN29LV160