參數(shù)資料
型號: GE28F640W30TD70
廠商: INTEL CORP
元件分類: PROM
英文描述: 4M X 16 FLASH 1.8V PROM, 70 ns, PBGA56
封裝: 0.75 MM PITCH, VFBGA-56
文件頁數(shù): 77/104頁
文件大?。?/td> 1443K
代理商: GE28F640W30TD70
28F640W30, 28F320W30, 28F128W30
June 2005
Intel Wireless Flash Memory (W30)
Datasheet
74
Order Number: 290702, Revision: 011
13.1.1
Lock
All blocks default to locked (state [x01]) after initial power-up or reset. Locked blocks are fully
protected from alteration. Attempted program or erase operations to a locked block return an error
in SR[1].
To lock unlocked blocks, use the Lock Block command sequence.
To change the status of a locked block to unlocked or lock-down, use the appropriate software
commands.
13.1.2
Unlock
Unlocked blocks (states [x00] and [110]) can be programmed or erased. All unlocked blocks return
to the locked state when the flash device is reset or powered-down.
To change the status of an unlocked block to the locked or locked-down state, use the
appropriate software commands.
To unlock a locked block, write the Unlock Block command sequence if the block is not
locked-down.
Figure 33.
Block Locking State Diagram
Notes: 1. [a,b,c] represents [WP#, D1, D0]. X = Don’t Care.
2. D1 indicates block Lock -down status.
- D1 = 0, Lock -down has not been issued to this block .
- D1 = 1, Lock -down has been issued to this block .
3. D0 indicates block lock status.
- D0 = 0, block is unlocked.
- D0 = 1, block is locked.
4. Locked-down = Hardware + Software locked.
5. [011] states should be tracked by system software to determine difference between
Hardware Locked and Locked -Down states.
Software Block Lock (0x60/0x01) or Software Block Unlock (0x60/0xD0)
Software Block Lock-Down (0x60/0x2F)
WP# hardware control
[X00]
Power-Up/Reset
Unlocked
[111]
[110 ]
Software
Locked
[011]
Hardware
Locked 5
Unlocked
WP# Hardware Control
[X01]
Locked
[011]
Locked -
Down4,5
B5070
相關(guān)PDF資料
PDF描述
GEN12.5-120 Programmable DC Power Supplies 750W/1500W
GEN12.5-60 Programmable DC Power Supplies 750W/1500W
GFL750 COPPER ALLOY, WIRE TERMINAL
GFL500 COPPER ALLOY, WIRE TERMINAL
GFL350 COPPER ALLOY, WIRE TERMINAL
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
GE28F800B3BA90 制造商:Intel 功能描述:NOR Flash, 512K x 16, 45 Pin, Plastic, BGA
GE28F800B3TA90 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:3 Volt Advanced Boot Block Flash Memory
GE28F800C3BA70 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Advanced+ Boot Block Flash Memory (C3)
GE28F800C3BA90 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Advanced+ Boot Block Flash Memory (C3)
GE28F800C3BC70 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Advanced+ Boot Block Flash Memory (C3)