參數(shù)資料
型號(hào): S29GL032A30FFI013
廠商: Spansion Inc.
英文描述: 64 Megabit, 32 Megabit, and 16 Megabit 3.0-Volt only Page Mode Flash Memory Featuring 200 nm MirrorBit Process Technology
中文描述: 64兆,32兆和16兆位3.0伏只頁(yè)面模式閃存,含有200納米MirrorBit工藝技術(shù)
文件頁(yè)數(shù): 52/95頁(yè)
文件大小: 2389K
代理商: S29GL032A30FFI013
52
S29GL-A
S29GL-A_00_A11 September 10, 2007
D a t a
S h e e t
9.
Command Definitions
Writing specific address and data commands or sequences into the command register initiates device
operations.
Table 10.2 on page 61
and
Table 10.1 on page 62
define the valid register command sequences.
Writing incorrect address and data values or writing them in the improper sequence may place the device in
an unknown state.
A reset command is then required to return the device to reading array data.
All addresses are latched on the falling edge of WE# or CE#, whichever happens later. All data is latched on
the rising edge of WE# or CE#, whichever happens first. Refer to
AC Characteristics
on page 72
for timing
diagrams.
9.1
Reading Array Data
The device is automatically set to reading array data after device power-up. No commands are required to
retrieve data. The device is ready to read array data after completing an Embedded Program or Embedded
Erase algorithm.
After the device accepts an Erase Suspend command, the device enters the erase-suspend-read mode, after
which the system can read data from any non-erase-suspended sector. After completing a programming
operation in the Erase Suspend mode, the system may once again read array data with the same exception.
See
Erase Suspend/Erase Resume Commands
on page 60
for more information.
The system
must
issue the reset command to return the device to the read (or erase-suspend-read) mode if
DQ5 goes high during an active program or erase operation, or if the device is in the autoselect mode. See
Reset Command
on page 52
for more information.
See also Requirements for Reading Array Data in
Device Bus Operations
on page 22
for more information.
The Read-Only Operations–
AC Characteristics
on page 72
provide the read parameters, and
Figure 16.2
on page 74
shows the timing diagram.
9.2
Reset Command
Writing the reset command resets the device to the read or erase-suspend-read mode. Address bits are don’t
cares for this command.
The reset command may be written between the sequence cycles in an erase command sequence before
erasing begins. This resets the device to the read mode. Once erasure begins, however, the device ignores
reset commands until the operation is complete.
The reset command may be written between the sequence cycles in a program command sequence before
programming begins. This resets the device to the read mode. If the program command sequence is written
while the device is in the Erase Suspend mode, writing the reset command returns the device to the erase-
suspend-read mode. Once programming begins, however, the device ignores reset commands until the
operation is complete.
The reset command may be written between the sequence cycles in an autoselect command sequence.
Once in the autoselect mode, the reset command must be written to return to the read mode. If the device
entered the autoselect mode while in the Erase Suspend mode, writing the reset command returns the device
to the erase-suspend-read mode.
If DQ5 goes high during a program or erase operation, writing the reset command returns the device to the
read mode (or erase-suspend-read mode if the device was in Erase Suspend).
Note that if DQ1 goes high during a Write Buffer Programming operation, the system must write the Write-to-
Buffer-Abort Reset command sequence to reset the device for the next operation.
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S29GL032A30FFIR10 64 Megabit, 32 Megabit, and 16 Megabit 3.0-Volt only Page Mode Flash Memory Featuring 200 nm MirrorBit Process Technology
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S29GL032A30FFIR12 制造商:SPANSION 制造商全稱:SPANSION 功能描述:64 Megabit, 32 Megabit, and 16 Megabit 3.0-Volt only Page Mode Flash Memory Featuring 200 nm MirrorBit Process Technology
S29GL032A30FFIR13 制造商:SPANSION 制造商全稱:SPANSION 功能描述:64 Megabit, 32 Megabit, and 16 Megabit 3.0-Volt only Page Mode Flash Memory Featuring 200 nm MirrorBit Process Technology
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S29GL032A30FFIR22 制造商:SPANSION 制造商全稱:SPANSION 功能描述:64 Megabit, 32 Megabit, and 16 Megabit 3.0-Volt only Page Mode Flash Memory Featuring 200 nm MirrorBit Process Technology