參數(shù)資料
型號: S29GL064A10BAIW12
廠商: SPANSION LLC
元件分類: PROM
英文描述: 4M X 16 FLASH 3V PROM, 100 ns, PBGA64
封裝: FBGA-64
文件頁數(shù): 55/97頁
文件大?。?/td> 3490K
代理商: S29GL064A10BAIW12
January 11, 2006 S29GL-A_00_A5
S29GL-A MirrorBit Flash Family
57
Pr el im i n a r y
DQ7 or DQ6 status bits, just as in the standard program operation. See Write
Operation Status on page 63 for more information.
The system must write the Program Resume command (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 ignored. Another Program
Suspend command can be written after the device resumes programming.
Figure 5. Program Suspend/Program Resume
Chip Erase Command Sequence
Chip erase is a six bus cycle operation. The chip erase command sequence is ini-
tiated by writing two unlock cycles, followed by a set-up command. Two
additional unlock write cycles are then followed by the chip erase command,
which in turn invokes the Embedded Erase algorithm. The device does not re-
quire the system to preprogram prior to erase. The Embedded Erase algorithm
automatically preprograms and verifies the entire memory for an all zero data
pattern prior to electrical erase. The system is not required to provide any con-
trols or timings during these operations. Table 30 on page 61 and Table 31 on
page 62 show the address and data requirements for the chip erase command
sequence.
When the Embedded Erase algorithm is complete, the device returns to the read
mode and addresses are no longer latched. The system can determine the status
of the erase operation by using DQ7, DQ6, or DQ2. Refer to Write Operation Sta-
tus on page 63 for information on these status bits.
Any commands written during the chip erase operation are ignored. However,
note that a hardware reset immediately terminates the erase operation. If this
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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