參數(shù)資料
型號: AM49LV128BML11NS
廠商: SPANSION LLC
元件分類: 存儲器
英文描述: 128 Megabit (8 M x 16-Bit) MirrorBit⑩ Uniform Sector Flash Memory and 32 Mbit (2 M x 16-Bit)
中文描述: SPECIALTY MEMORY CIRCUIT, PBGA64
封裝: 12 X 9 MM, FBGA-64
文件頁數(shù): 31/98頁
文件大小: 1016K
代理商: AM49LV128BML11NS
June 17, 2004
Am49LV128BM
29
Figure 4.
Program Operation
Program Suspend/Program Resume
Command Sequence
The Program Suspend command allows the system to
interrupt a programming operation or a Write to Buffer
programming operation so that data can be read from
any non-suspended sector. Within the suspended sec-
tor, data may be read from addresses outside of the
page (for example, Amax–A4) being programmed.
When the Program Suspend command is written dur-
ing a programming process, the device halts the pro-
gram operation within 15 μs maximum (5 μs typical)
and updates the status bits. Addresses are not re-
quired when writing the Program Suspend command.
After the programming operation has been sus-
pended, the system can read array data from any non-
suspended sector or from selected addresses within
the suspended sector (see previous paragraph). The
Program Suspend command may also be issued dur-
ing a programming operation while an erase is sus-
pended. In this case, data may be read from any
sectors not in Erase Suspend or Program Suspend. If
a read is needed from the SecSi Sector area (One-
time Program area), then the user must use the proper
command sequences to enter and exit this region.
The system may also write the autoselect command
sequence when the device is in the Program Suspend
mode. The system can read as many autoselect
codes as required. When the device exits the autose-
lect mode, the device reverts to the Program Suspend
mode, and is ready for another valid operation. See
Autoselect Command Sequence for more information.
After the Program Resume command is written, the
device reverts to programming. The system can deter-
mine the status of the program operation using the
DQ7 or DQ6 status bits, just as in the standard pro-
gram operation. See Write Operation Status for more
information.
The system must write the Program Resume com-
mand (address bits are don’t care) to exit the Program
Suspend mode and continue the programming opera-
tion. Further writes of the Resume command are ig-
nored. Another Program Suspend command can be
written after the device has resume programming.
There is no time-out limit for the Program Suspend
command. After the Program Suspend command is
written, the device will stay in Program Suspend mode
until the Program Resume command or the RESET
command/operation is written.
START
Write Program
Command Sequence
Data Poll
from System
Verify Data
No
Yes
Last Address
No
Yes
Programming
Completed
Increment Address
Embedded
Program
algorithm
in progress
Note:
See Tables 9 and 10 for program command
sequence.
Program Operation
or Write-to-Buffer
Sequence in Progress
Write Program Suspend
Command Sequence
Command is also valid for
Erase-suspended-program
operations
Autoselect and SecSi Sector
read operations are also allowed
Data cannot be read from erase- or
program-suspended sectors
Write Program Resume
Command Sequence
Read data as
required
Done
reading
No
Yes
Write address/data
XXXh/30h
Device reverts to
operation prior to
Program Suspend
Write address/data
XXXh/B0h
Wait 15 μs
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