參數(shù)資料
型號(hào)： 28F640P3
廠商： Intel Corp.
英文描述： Intel StrataFlash Embedded Memory
中文描述： 英特爾StrataFlash嵌入式存儲(chǔ)器
文件頁(yè)數(shù)： 35/82頁(yè)
文件大?。?/td> 749K
代理商： 28F640P3
28F6408W30, 28F3204W30, 28F320W30, 28F640W30
Preliminary
29
always issue the Read Mode command appropriate to the read operation. To read status after
resuming a suspended operation, issue a Read Status Register command (70H) to return the
suspended partition to status mode.
8.0
Flash Security Modes
The 1.8 Volt Intel
Wireless Flash Memory with 3 Volt I/O offers both hardware and software
security features to protect the flash data. The software security feature is used by executing the
Lock Block command. The hardware security feature is used by executing the Lock-Down Block
command AND by asserting the WP# and V
PP
signals.
For details on V
PP
data security, refer to
Section 5.4,
“
Write Protection (V
PP
< V
PPLK
)
”
on page 27
and
Section 6.2,
“
Erase Protection (V
PP
< V
PPLK
)
”
on page 28
. Refer to
Figure 10,
“
Block Locking
State Diagram
for a state diagram of the flash security features. Also see
Figure 35,
“
Locking
Operations Flowchart
”
on page 66
.
NOTES:
1. The notation (X,Y,Z) denotes the locking state of a block, The current locking state of a block is defined by the
state of WP# and the two bits of the block-lock status DQ
1-0.
2. Solid line indicates WP# asserted (low). Dashed line indicates WP# unasserted (high).
8.1
Block Lock
All blocks default to locked (states [001] or [101]) upon power-up or reset. Locked blocks are fully
protected from alteration. Attempted program or erase operations to a locked block will return an
error in status register bit SR.1. A locked block
’
s status can be changed to unlocked or lock-down
using the appropriate software commands. Writing the Lock Block command sequence can lock an
unlocked block.
Figure 10. Block Locking State Diagram
Power-up
or
Reset
Block
Locked
Block
Unlocked
Block
Locked-
Down
(001)
or
(101)
Unlock Cmd
(000)
Initial Lock-Down Cmd
or Assert WP #
(011)
Lock Cmd
(001)
Unassert WP#
(111)
Initial Lock-Down Cmd
or Assert WP#
(011)
(X) (Y) (Z)
WP# DQ
1
DQ
0
Block Status
0 0 0 unlocked
0 0 1 locked; default
0 1 0 invalid
0 1 1 locked down
1 0 0 unlocked
1 0 1 locked
1 1 0 unlocked
1 1 1 locked
Notes: 1.) X = WP# = write protect signal.
2.) Y = DQ
1
= Lock-down status.
3.) Z = DQ
0
= Lock status.
Unlock Cmd
(110)
Lock Cmd
(101)
(101)
(100)
相關(guān)PDF資料
PDF描述
28F320C3 3 Volt Advanced Boot Block Flash Memory(3 V 高級(jí)快速引導(dǎo)塊閃速存儲(chǔ)器)
28F800C3 3 Volt Advanced Boot Block Flash Memory(3 V 高級(jí)快速引導(dǎo)塊閃速存儲(chǔ)器)
28F160C3 3 Volt Advanced Boot Block Flash Memory(3 V 高級(jí)快速引導(dǎo)塊閃速存儲(chǔ)器)
28F320D18 1.8 Volt Intel Dual-Plane Flash Memory(1.8 V Intel 雙平面閃速存儲(chǔ)器)
28F320J5 5 Volt Intel StrataFlash Memory(5 V 32M位英特爾StrataFlash存儲(chǔ)器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
28F640W30 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:1.8 Volt Intel Wireless Flash Memory with 3 Volt I/O and SRAM (W30)
28F650 制造商:Cinch Connectors 功能描述:1 Lug Terminal Strip
28F651 制造商:Cinch Connectors 功能描述:2 Lug Terminal Strip
28F652 制造商:Cinch Connectors 功能描述:3 Lug Terminal Strip
28F653 制造商:Cinch Connectors 功能描述:4 Lug Terminal Strip
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