參數(shù)資料
型號(hào)： S29XS064R0PBHW010
廠商： SPANSION LLC
元件分類(lèi)： PROM
英文描述： 4M X 16 FLASH 1.8V PROM, 80 ns, PBGA44
封裝： 7.50 X 5 MM, LEAD FREE, FBGA-44
文件頁(yè)數(shù)： 36/65頁(yè)
文件大小： 2116K
代理商： S29XS064R0PBHW010
July 22, 2011 S29VS_XS064R_00_06
S29VS/XS-R MirrorBit
Flash Family
41
Da ta
Sh e e t
(Adv a n ce
In f o r m ation)
Figure 12.3 Erase Operation
Note
See the section on DQ3 for information on the sector erase start timeout state indicator.
12.9
Erase Suspend/Erase Resume Commands
The Erase Suspend command, B0h, allows the system to interrupt a sector erase operation and then read
data from, program data to, any sector not selected for erasure. The system may also lock or unlock any
sector while the erase operation is suspended. The system must not write the sector lock/unlock
command to sectors selected for erasure. The bank address is required when writing this command. This
command is valid only during the sector erase operation. The Erase Suspend command is ignored if written
during the chip erase operation or Embedded Program algorithm.
When the Erase Suspend command is written during the sector erase operation, the device requires a
maximum of tESL, erase suspend latency, to suspend the erase operation. However, when the Erase
Suspend command is written during the sector erase time-out, the device immediately terminates the
time-out period and suspends the erase operation.
After the erase operation has been suspended, the bank enters the erase-suspend-read mode. The system
can read data from or program data to any sector not selected for erasure. (The device “erase suspends” all
sectors selected for erasure.) The system may also lock or unlock any sector while in the erase-suspend-read
mode. Reading at any address within erase-suspended sectors produces status information on DQ7–DQ0.
The system can use DQ7, or DQ6 and DQ2 together, to determine if a sector is actively erasing or is erase-
suspended. Refer to Write Operation Status on page 45 for information on these status bits.
After an erase-suspended program operation is complete, the bank returns to the erase-suspend-read mode.
The system can determine the status of the program operation using the DQ7 or DQ6 status bits, just as in
the standard program operation. Refer to Write Operation Status on page 45 for more information.
In the erase-suspend-read mode, the system can also issue the autoselect command sequence. Refer to the
Autoselect Functions and Autoselect Command Sequence sections for details.
To resume the sector erase operation, the system must write the Erase Resume command. The bank
address of the erase-suspended bank is required when writing this command. Further writes of the Resume
command are ignored. Another Erase Suspend command can be written after the chip has resumed erasing.
START
Write Erase
Command Sequence
Data Poll
from System
Data = FFh?
No
Yes
Erasure Completed
Embedded
Erase
algorithm
in progress
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