MX29LV065TC-12 MCNIX [Macronix International], MX29LV065TC-12 Datasheet - Page 46

• Manufacturer Part Number: MX29LV065TC-12
• Description: 64M-BIT [8M x 8] CMOS EQUAL SECTOR FLASH MEMORY
• Manufacturer: MCNIX [Macronix International]

Fig 13. IN-SYSTEM SECTOR GROUP PROTECT/CHIP UNPROTECTED ALGORITHMS WITH
P/N:PM0893
Sector Protect
Increment PLSCNT
Temporary Sector
Unprotect Mode
Algorithm
PLSCNT=25?
RESET=VID
Device failed
Yes
No
No
No
Remove VID from RESET
Sector Protect complete
Write reset command
Verify Sector Protect:
Set up sector address
Write 60h to sector
Write 40h to sector
A6=0, A1=1, A0=0
A6=0, A1=1, A0=0
A6=0, A1=1, A0=0
Protect another
Sector Protect:
sector address
Wait 150us
address with
address with
Cycle=60h?
Data=01h?
RESET=VID
Wait 1us
PLSCNT=1
Read from
First Write
sector?
START
with
Yes
Yes
No
Yes
PLSCNT=1
Reset
the sector protect algorithm
for all unprotected sectors
46
sector unprotect address
The indicated portion of
prior to issuing the first
must be performed
Protect all sectors:
Sector Unprotect
Increment PLSCNT
PLSCNT=1000?
Algorithm
Device failed
No
Yes
No
No
Sector Unprotect complete
Remove VID from RESET
Set up first sector address
MX29LV065
Verify Sector Unprotect:
Write reset command
Write 40h to sector
Write 60h to sector
A6=1, A1=1, A0=0
A6=1, A1=1, A0=0
A6=1, A1=1, A0=0
Sector Unprotect:
sector address
Wait 15 ms
address with
Cycle=60h?
address with
RESET=VID
Wait 1us
Last sector
PLSCNT=1
protected?
Data=00h?
First Write
All sectors
Read from
verified?
START
with
Yes
Yes
Yes
Yes
No
REV. 0.4, JUL. 22, 2003
No
Temporary Sector
PLSCNT=1
Unprotect Mode
Reset