AM29DL323GT90WMI AMD (ADVANCED MICRO DEVICES), AM29DL323GT90WMI Datasheet - Page 55

• Manufacturer Part Number: AM29DL323GT90WMI
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of AM29DL323GT90WMI

• Lead Free Status / Rohs Status: Not Compliant

March 15, 2004 31107A5
Temporary Sector
Unprotect Mode
Sector Protect
from RESET#
Remove V
Device failed
Increment
Write reset
PLSCNT
PLSCNT
command
complete
= 25?
No
Yes
Sector Protect
ID
Algorithm
Figure 1. In-System Sector Protection/Sector Unprotection Algorithms
No
No
Write 60h to sector
Protect: Write 40h
to sector address
Sector Protect:
Protect another
RESET# = V
sector address
Sector Protect
from RESET#
Verify Sector
with A7-A0 =
Set up sector
PLSCNT = 1
Cycle = 60h?
address with
with A7-A0 =
Remove V
Wait 100 µs
Data = 01h?
Write reset
Read from
First Write
00000010
00000010
command
Wait 4 µs
00000010
complete
A7-A0 =
address
START
sector?
Yes
No
Yes
ID
ID
P R E L I M I N A R Y
S29PL127J/S29PL129J/S29PL064J/S29PL032J
Yes
PLSCNT = 1
Reset
The indicated portion
Protect all sectors:
unprotected sectors
of the sector protect
prior to issuing the
unprotect address
algorithm must be
performed for all
first sector
Sector Unprotect
from RESET#
Device failed
Remove V
Write reset
Increment
command
PLSCNT
PLSCNT
complete
= 1000?
Yes
No
Sector Unprotect
ID
Algorithm
No
No
Write 60h to sector
Set up first sector
Sector Unprotect:
Unprotect: Write
Sector Unprotect
RESET# = V
sector address
from RESET#
Verify Sector
40h to sector
with A7-A0 =
address with
PLSCNT = 1
Cycle = 60h?
address with
Remove V
Wait 1.2 ms
Data = 00h?
Write reset
Read from
Last sector
First Write
01000010
00000010
00000010
command
Wait 4 µs
All sectors
protected?
complete
A7-A0 =
A7-A0 =
address
verified?
START
Yes
Yes
Yes
Yes
ID
ID
No
No
Temporary Sector
Unprotect Mode
next sector
address
Set up
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