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參數(shù)資料
| 型號： | AM49LV128BMAL15NT |
| 廠商： | SPANSION LLC |
| 元件分類： | 存儲器 |
| 英文描述： | 128 Megabit (8 M x 16-Bit) MirrorBit⑩ Uniform Sector Flash Memory and 32 Mbit (2 M x 16-Bit) |
| 中文描述： | SPECIALTY MEMORY CIRCUIT, PBGA64 |
| 封裝： | 12 X 9 MM, FBGA-64 |
| 文件頁數(shù)： | 20/98頁 |
| 文件大?。?/td> | 1016K |
| 代理商： | AM49LV128BMAL15NT |
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18
Am49LV128BM
June 17, 2004
function and unlock bypass modes are not available
when the SecSi Sector is enabled.
The SecSi sector address space in this device is allo-
cated as follows:
Table 3.
SecSi Sector Contents
The system accesses the SecSi Sector through a
command sequence (see “Enter SecSi Sector/Exit
SecSi Sector Command Sequence”). After the system
has written the Enter SecSi Sector command se-
quence, it may read the SecSi Sector by using the ad-
dresses normally occupied by the first sector (SA0).
This mode of operation continues until the system is-
sues the Exit SecSi Sector command sequence, or
until power is removed from the device. On power-up,
or following a hardware reset, the device reverts to
sending commands to sector SA0.
Customer Lockable: SecSi Sector NOT
Programmed or Protected At the Factory
Unless otherwise specified, the device is shipped such
that the customer may program and protect the 256-
byte SecSi sector.
The system may program the SecSi Sector using the
write-buffer, accelerated and/or unlock bypass meth-
ods, in addition to the standard programming com-
mand sequence. See Command Definitions.
Programming and protecting the SecSi Sector must be
used with caution since, once protected, there is no
procedure available for unprotecting the SecSi Sector
area and none of the bits in the SecSi Sector memory
space can be modified in any way.
The SecSi Sector area can be protected using one of
the following procedures:
Write the three-cycle Enter SecSi Sector Region
command sequence, and then follow the in-system
sector protect algorithm as shown in Figure 2, ex-
cept that
RESET# may be at either V
IH
or V
ID
. This
allows in-system protection of the SecSi Sector
without raising any device pin to a high voltage.
Note that this method is only applicable to the SecSi
Sector.
To verify the protect/unprotect status of the SecSi
Sector, follow the algorithm shown in Figure 3.
Once the SecSi Sector is programmed, locked and
verified, the system must write the Exit SecSi Sector
Region command sequence to return to reading and
writing within the remainder of the array.
Factory Locked: SecSi Sector Programmed and
Protected At the Factory
In devices with an ESN, the SecSi Sector is protected
when the device is shipped from the factory. The SecSi
Sector cannot be modified in any way. An ESN Factory
Locked device has an 16-byte random ESN at ad-
dresses 000000h–000007h. Please contact your local
AMD sales representative for details on ordering ESN
Factory Locked devices.
Customers may opt to have their code programmed by
AMD through the AMD ExpressFlash service (Express
Flash Factory Locked). The devices are then shipped
from AMD’s factory with the SecSi Sector permanently
locked. Contact an AMD representative for details on
using AMD’s ExpressFlash service.
Note: MCP devices with second supplier pSRAM
have 000000h address programmed to 0000h data.
SecSi Sector
Address Range
Customer
Lockable
ESN Factory
Locked
ExpressFlash
Factory Locked
ESN or
determined by
customer
Determined by
customer
000000h–000007h
Determined by
customer
ESN
000008h–00007Fh
Unavailable
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AM49LV128BMH11NS | 128 Megabit (8 M x 16-Bit) MirrorBit⑩ Uniform Sector Flash Memory and 32 Mbit (2 M x 16-Bit) |
| AM49LV128BMH11NT | 128 Megabit (8 M x 16-Bit) MirrorBit⑩ Uniform Sector Flash Memory and 32 Mbit (2 M x 16-Bit) |
| AM49LV128BMH15NS | 128 Megabit (8 M x 16-Bit) MirrorBit⑩ Uniform Sector Flash Memory and 32 Mbit (2 M x 16-Bit) |
| AM49LV128BMH15NT | 128 Megabit (8 M x 16-Bit) MirrorBit⑩ Uniform Sector Flash Memory and 32 Mbit (2 M x 16-Bit) |
| AM49LV128BML11NS | 128 Megabit (8 M x 16-Bit) MirrorBit⑩ Uniform Sector Flash Memory and 32 Mbit (2 M x 16-Bit) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM49LV128BMH11NS | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:128 Megabit (8 M x 16-Bit) MirrorBit⑩ Uniform Sector Flash Memory and 32 Mbit (2 M x 16-Bit) |
| AM49LV128BMH11NT | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:128 Megabit (8 M x 16-Bit) MirrorBit⑩ Uniform Sector Flash Memory and 32 Mbit (2 M x 16-Bit) |
| AM49LV128BMH15NS | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:128 Megabit (8 M x 16-Bit) MirrorBit⑩ Uniform Sector Flash Memory and 32 Mbit (2 M x 16-Bit) |
| AM49LV128BMH15NT | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:128 Megabit (8 M x 16-Bit) MirrorBit⑩ Uniform Sector Flash Memory and 32 Mbit (2 M x 16-Bit) |
| AM49LV128BML11NS | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:128 Megabit (8 M x 16-Bit) MirrorBit⑩ Uniform Sector Flash Memory and 32 Mbit (2 M x 16-Bit) |
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