參數(shù)資料
型號: S71WS512N80BFEZZ2
廠商: Spansion Inc.
英文描述: Stacked Multi-Chip Product (MCP) Flash Memory and pSRAM CMOS 1.8 Volt
中文描述: 堆疊式多芯片產(chǎn)品(MCP)的閃存和移動存儲芯片的CMOS 1.8伏特
文件頁數(shù): 62/142頁
文件大小: 1996K
代理商: S71WS512N80BFEZZ2
62
S29WSxxxN MirrorBit Flash Family For Multi-chip Products (MCP)
S71WS512NE0BFWZZ_00_ A1 June 28, 2004
A d v a n c e I n f o r m a t i o n
Program Suspend command can be written after the device has resumed
programming.
Lock Register Command Set Definitions
The Lock Register Command Set permits the user to program the SecSi Sector
Protection Bit, Persistent Protection Mode Lock Bit, or Password Protection Mode
Lock Bit one time. The Lock Command Set also allows for the reading of the SecSi
Sector Protection Bit, Persistent Protection Mode Lock Bit, or Password Protection
Mode Lock Bit.
The
Lock Register Command Set Entry
command sequence must be issued
prior to any of the following commands to enable proper command execution.
Lock Register Program Command
Lock Register Read Command
Lock Register Exit Command
Note that issuing the
Lock Register Command Set Entry
command disables
reads and writes for Bank 0. Reads from other banks excluding Bank 0 are
allowed.
The
Lock Register Command Set Exit
command must be issued after the ex-
ecution of the commands to reset the device to read mode. Otherwise the device
will hang.
For either the SecSi Sector to be locked, or the device to be permanently set to
the Persistent Protection Mode or the Password Protection Mode, the sequence of
a
Lock Register Command Set Exit command,
must be initiated after issuing
the
SecSi Protection Bit Program
,
Persistent Protection Mode Locking Bit
Program
, or the
Password Protection Mode Locking Bit Program
com-
mands. Note that if the
Persistent Protection Mode Locking Bit
and the
Password Protection Mode Locking Bit
are programmed at the same time,
neither will be programmed.
Note that issuing the
Lock Register Command Set Exit
command re-enables
reads and writes for Bank 0.
Password Protection Command Set Definitions
The Password Protection Command Set permits the user to program the 64-bit
password, verify the programming of the 64-bit password, and then later unlock
the device by issuing the valid 64-bit password.
The
Password Protection Command Set Entry
command sequence must be
issued prior to any of the following commands to enable proper command
execution.
Password Program Command
Password Read Command
Password Unlock Command
Note that issuing the
Password Protection Command Set Entry
command
disables reads and writes for Bank 0. Reads and Writes for other banks excluding
Bank 0 are allowed.
The Password Program Command permits programming the password that is
used as part of the hardware protection scheme. The actual password is 64-bits
long. There is no special addressing order required for programming the
password.
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