參數(shù)資料
型號(hào)： AM49LV6408MB15IT
廠商： SPANSION LLC
元件分類： 存儲(chǔ)器
英文描述： Stacked Multi-chip Package (MCP) 64 Mbit (4 M x 16 bit) Flash Memory and 8 Mbit (512K x 16-Bit)
中文描述： SPECIALTY MEMORY CIRCUIT, PBGA69
封裝： 10 X 8 MM, 1.20 MM HEIGHT, FBGA-69
文件頁數(shù)： 20/63頁
文件大?。?/td> 540K
代理商： AM49LV6408MB15IT
18
Am49LV6408M
November 5, 2003
A D V A N C E I N F O R M A T I O N
Sector Group Protection and
Unprotection
The hardware sector group protection feature disables
both program and erase operations in any sector
group. In this device, a sector group consists of four
adjacent sectors that are protected or unprotected at
the same time (see Tables
4
and
5
). The hardware
sector group unprotection feature re-enables both pro-
gram and erase operations in previously protected
sector groups. Sector group protection/unprotection
can be implemented via two methods.
Sector protection/unprotection requires V
ID
on the RE-
SET# pin only, and can be implemented either in-sys-
tem or via programming equipment. Figure 2 shows
the algorithms and Figure 24 shows the timing dia-
gram. This method uses standard microprocessor bus
cycle timing. For sector group unprotect, all unpro-
tected sector groups must first be protected prior to
the first sector group unprotect write cycle.
The device is shipped with all sector groups unpro-
tected. AMD offers the option of programming and
protecting sector groups at its factory prior to shipping
the device through AMD’s ExpressFlash Service.
Contact an AMD representative for details.
It is possible to determine whether a sector group is
protected or unprotected. See the
Sector Group Pro-
tection and Unprotection
section for details.
Table 4.
Am29LV640MT Top Boot
Sector Protection
Sector
A21–A12
Sector/
Sector Block Size
SA0-SA3
00000XXXXX
256 (4x64) Kbytes
SA4-SA7
00001XXXXX
256 (4x64) Kbytes
SA8-SA11
00010XXXXX
256 (4x64) Kbytes
SA12-SA15
00011XXXXX
256 (4x64) Kbytes
SA16-SA19
00100XXXXX
256 (4x64) Kbytes
SA20-SA23
00101XXXXX
256 (4x64) Kbytes
SA24-SA27
00110XXXXX
256 (4x64) Kbytes
SA28-SA31
00111XXXXX
256 (4x64) Kbytes
SA32-SA35
01000XXXXX
256 (4x64) Kbytes
SA36-SA39
01001XXXXX
256 (4x64) Kbytes
SA40-SA43
01010XXXXX
256 (4x64) Kbytes
SA44-SA47
01011XXXXX
256 (4x64) Kbytes
SA48-SA51
01100XXXXX
256 (4x64) Kbytes
SA52-SA55
01101XXXXX
256 (4x64) Kbytes
SA56-SA59
01110XXXXX
256 (4x64) Kbytes
SA60-SA63
01111XXXXX
256 (4x64) Kbytes
SA64-SA67
10000XXXXX
256 (4x64) Kbytes
SA68-SA71
10001XXXXX
256 (4x64) Kbytes
SA72-SA75
10010XXXXX
256 (4x64) Kbytes
SA76-SA79
10011XXXXX
256 (4x64) Kbytes
SA80-SA83
10100XXXXX
256 (4x64) Kbytes
SA84-SA87
10101XXXXX
256 (4x64) Kbytes
SA88-SA91
10110XXXXX
256 (4x64) Kbytes
SA92-SA95
10111XXXXX
256 (4x64) Kbytes
SA96-SA99
11000XXXXX
256 (4x64) Kbytes
SA100-SA103
11001XXXXX
256 (4x64) Kbytes
SA104-SA107
11010XXXXX
256 (4x64) Kbytes
SA108-SA111
11011XXXXX
256 (4x64) Kbytes
SA112-SA115
11100XXXXX
256 (4x64) Kbytes
SA116-SA119
11101XXXXX
256 (4x64) Kbytes
SA120-SA123
11110XXXXX
256 (4x64) Kbytes
SA124-SA126
1111100XXX
1111101XXX
1111110XXX
192 (3x64) Kbytes
SA127
1111111000
8 Kbytes
SA128
1111111001
8 Kbytes
SA129
1111111010
8 Kbytes
SA130
1111111011
8 Kbytes
SA131
1111111100
8 Kbytes
SA132
1111111101
8 Kbytes
SA133
1111111110
8 Kbytes
SA134
1111111111
8 Kbytes
Table 5.
Am29LV640MB Bottom Boot
Sector Protection
Sector
A21–A12
Sector/
Sector Block Size
SA0
0000000000
8 Kbytes
SA1
0000000001
8 Kbytes
SA2
0000000010
8 Kbytes
SA3
0000000011
8 Kbytes
SA4
0000000100
8 Kbytes
SA5
0000000101
8 Kbytes
SA6
0000000110
8 Kbytes
SA7
0000000111
8 Kbytes
SA8–SA10
0000001XXX,
0000010XXX,
0000011XXX,
192 (3x64) Kbytes
SA11–SA14
00001XXXXX
256 (4x64) Kbytes
SA15–SA18
00010XXXXX
256 (4x64) Kbytes
SA19–SA22
00011XXXXX
256 (4x64) Kbytes
SA23–SA26
00100XXXXX
256 (4x64) Kbytes
SA27-SA30
00101XXXXX
256 (4x64) Kbytes
SA31-SA34
00110XXXXX
256 (4x64) Kbytes
SA35-SA38
00111XXXXX
256 (4x64) Kbytes
SA39-SA42
01000XXXXX
256 (4x64) Kbytes
SA43-SA46
01001XXXXX
256 (4x64) Kbytes
SA47-SA50
01010XXXXX
256 (4x64) Kbytes
SA51-SA54
01011XXXXX
256 (4x64) Kbytes
Sector
A21–A12
Sector/
Sector Block Size
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM49LV6408MT10I 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Stacked Multi-chip Package (MCP) 64 Mbit (4 M x 16 bit) Flash Memory and 8 Mbit (512K x 16-Bit) pseudo Static RAM
AM49LV6408MT10IT 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Stacked Multi-chip Package (MCP) 64 Mbit (4 M x 16 bit) Flash Memory and 8 Mbit (512K x 16-Bit)
AM49LV6408MT11I 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Stacked Multi-chip Package (MCP) 64 Mbit (4 M x 16 bit) Flash Memory and 8 Mbit (512K x 16-Bit) pseudo Static RAM
AM49LV6408MT11IT 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Stacked Multi-chip Package (MCP) 64 Mbit (4 M x 16 bit) Flash Memory and 8 Mbit (512K x 16-Bit)
AM49LV6408MT15I 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Stacked Multi-chip Package (MCP) 64 Mbit (4 M x 16 bit) Flash Memory and 8 Mbit (512K x 16-Bit) pseudo Static RAM
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