參數(shù)資料
型號: Am29LV640DL90RZE
廠商: Advanced Micro Devices, Inc.
英文描述: 8 Characters x 2 Lines, 5x7 Dot Matrix Character and Cursor
中文描述: 64兆位(4個(gè)M x 16位),3.0伏的CMOS只均勻部門閃光控制記憶與VersatileI
文件頁數(shù): 14/57頁
文件大小: 1467K
代理商: AM29LV640DL90RZE
20
Am29LV640D/Am29LV641D
September 20, 2002
Figure 2.
In-System Sector Group Protect/Unprotect Algorithms
Sector Group Protect:
Write 60h to sector
group address with
A6 = 0, A1 = 1,
A0 = 0
Set up sector
group address
Wait 150 s
Verify Sector Group
Protect: Write 40h
to sector group
address twith A6 = 0,
A1 = 1, A0 = 0
Read from
sector group address
with A6 = 0,
A1 = 1, A0 = 0
START
PLSCNT = 1
RESET# = VID
Wait 1
s
First Write
Cycle = 60h?
Data = 01h?
Remove VID
from RESET#
Write reset
command
Sector Group
Protect complete
Yes
No
PLSCNT
= 25?
Yes
Device failed
Increment
PLSCNT
Temporary Sector
Group Unprotect
Mode
No
Sector Group
Unprotect:
Write 60h to sector
group address with
A6 = 1, A1 = 1,
A0 = 0
Set up first sector
group address
Wait 15 ms
Verify Sector Group
Unprotect: Write
40h to sector group
address with
A6 = 1, A1 = 1,
A0 = 0
Read from
sector group
address with A6 = 1,
A1 = 1, A0 = 0
START
PLSCNT = 1
RESET# = VID
Wait 1
s
Data = 00h?
Last sector
group
verified?
Remove VID
from RESET#
Write reset
command
Sector Group
Unprotect complete
Yes
No
PLSCNT
= 1000?
Yes
Device failed
Increment
PLSCNT
Temporary Sector
Group Unprotect
Mode
No
All sector
groups
protected?
Yes
Protect all sector
groups: The indicated
portion of the sector
group protect algorithm
must be performed for all
unprotected sector
groups prior to issuing
the first sector group
unprotect address
Set up
next sector group
address
No
Yes
No
Yes
No
Yes
No
Sector Group
Protect
Algorithm
Sector Group
Unprotect
Algorithm
First Write
Cycle = 60h?
Protect
another
sector group?
Reset
PLSCNT = 1
相關(guān)PDF資料
PDF描述
Am29LV641DH90RZE 8 Characters x 2 Lines, 5x7 Dot Matrix Character and Cursor
Am29LV641DL90RZE 8 Characters x 2 Lines, 5x7 Dot Matrix Character and Cursor
AM3505AZERA MICROPROCESSOR, PBGA484
AM3505AZER MICROPROCESSOR, PBGA484
AM41PDS3224DT11IT SPECIALTY MEMORY CIRCUIT, PBGA73
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM29LV640DL90RZI 制造商:Advanced Micro Devices 功能描述:
AM29LV640DU-90NI 制造商:Advanced Micro Devices 功能描述:
AM29LV640DU90REI 制造商:Spansion 功能描述:FLASH PARALLEL 3V/3.3V 64MBIT 4MX16 90NS 48TSOP - Trays
AM29LV640DU-90RWHIT 制造商:Advanced Micro Devices 功能描述:63-BALL FINE-PITCH BALL GRID ARRAY (FBGA) 0.80 MM PITCH, 11 X 12 MM PACKAGE (FBE063)
AM29LV640MB-90REI 制造商:Advanced Micro Devices 功能描述: