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參數(shù)資料
| 型號(hào)： | S70WS512N00BAWAA2 |
| 廠商： | Spansion Inc. |
| 英文描述： | Same-Die Stacked Multi-Chip Product (MCP) 512 Megabit (32M x 16 bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst-mode Flash Memory |
| 中文描述： | 同硅晶片堆疊多芯片產(chǎn)品（MCP）的512兆位（32兆× 16位）的CMOS 1.8伏，只有同時(shí)讀/寫，突發(fā)模式閃存 |
| 文件頁(yè)數(shù)： | 51/93頁(yè) |
| 文件大?。?/td> | 846K |
| 代理商： | S70WS512N00BAWAA2 |
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52
S70WS512N00 Based MCPs
S70WS512N00_00_A0 March 14, 2005
A d v a n c e I n f o r m a t i o n
9.1
Lock Register
As shipped from the factory, all devices default to the persistent mode when power is applied, and
all sectors are unprotected, unless otherwise chosen through the DYB ordering option. The device
programmer or host system must then choose which sector protection method to use. Program-
ming (setting to
0
) any one of the following two one-time programmable, non-volatile bits locks
the part permanently in that mode:
Lock Register Persistent Protection Mode Lock Bit (DQ1)
Lock Register Password Protection Mode Lock Bit (DQ2)
For programming lock register bits refer to
Table 13.2
.
Notes
1. If the password mode is chosen, the password must be programmed before setting the cor-
responding lock register bit.
2. After the Lock Register Bits Command Set Entry command sequence is written, reads and
writes for Bank 0 are disabled, while reads from other banks are allowed until exiting this
mode.
3. If both lock bits are selected to be programmed (to zeros) at the same time, the operation
aborts.
4. Once the Password Mode Lock Bit is programmed, the Persistent Mode Lock Bit is permanently
disabled, and no changes to the protection scheme are allowed. Similarly, if the Persistent
Mode Lock Bit is programmed, the Password Mode is permanently disabled.
After selecting a sector protection method, each sector can operate in any of the following three
states:
1.
Constantly locked.
The selected sectors are protected and can not be reprogrammed unless
PPB lock bit is cleared via a password, hardware reset, or power cycle.
Dynamically locked.
The selected sectors are protected and can be altered via software
commands.
Unlocked.
The sectors are unprotected and can be erased and/or programmed.
2.
3.
These states are controlled by the bit types described in Sections
9.2
–
9.6
.
9.2
Persistent Protection Bits
The Persistent Protection Bits are unique and nonvolatile for each sector and have the same en-
durances as the Flash memory. Preprogramming and verification prior to erasure are handled by
the device, and therefore do not require system monitoring.
Table 9.1 Lock Register
Device
DQ15-05
DQ4
DQ3
DQ2
DQ1
DQ0
S29WS256N
1
1
1
Password
Protection
Mode Lock Bit
Persistent
Protection
Mode Lock Bit
Customer
Secured Silicon
Sector
Protection Bit
S29WS128N/
S29WS064N
Undefined
DYB Lock Boot Bit
0 = sectors
power up
protected
1 = sectors
power up
unprotected
PPB One-Time
Programmable Bit
0 = All PPB erase
command disabled
1 = All PPB Erase
command enabled
Password
Protection
Mode Lock Bit
Persistent
Protection
Mode Lock Bit
Secured Silicon
Sector
Protection Bit
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S70WS512N00BAWAA3 | Same-Die Stacked Multi-Chip Product (MCP) 512 Megabit (32M x 16 bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst-mode Flash Memory |
| S70WS512N00BAWAB0 | Same-Die Stacked Multi-Chip Product (MCP) 512 Megabit (32M x 16 bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst-mode Flash Memory |
| S70WS512N00BAWAB2 | Same-Die Stacked Multi-Chip Product (MCP) 512 Megabit (32M x 16 bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst-mode Flash Memory |
| S70WS512N00BAWAB3 | Same-Die Stacked Multi-Chip Product (MCP) 512 Megabit (32M x 16 bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst-mode Flash Memory |
| S70WS512N00BFWA20 | Same-Die Stacked Multi-Chip Product (MCP) 512 Megabit (32M x 16 bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst-mode Flash Memory |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S70WS512N00BAWAA3 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Same-Die Stacked Multi-Chip Product (MCP) 512 Megabit (32M x 16 bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst-mode Flash Memory |
| S70WS512N00BAWAB0 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Same-Die Stacked Multi-Chip Product (MCP) 512 Megabit (32M x 16 bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst-mode Flash Memory |
| S70WS512N00BAWAB2 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Same-Die Stacked Multi-Chip Product (MCP) 512 Megabit (32M x 16 bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst-mode Flash Memory |
| S70WS512N00BAWAB3 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Same-Die Stacked Multi-Chip Product (MCP) 512 Megabit (32M x 16 bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst-mode Flash Memory |
| S70WS512N00BFWA20 | 制造商:SPANSION 制造商全稱:SPANSION 功能描述:Same-Die Stacked Multi-Chip Product (MCP) 512 Megabit (32M x 16 bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst-mode Flash Memory |
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