參數(shù)資料
型號： S71GL064A08
廠商： Spansion Inc.
英文描述： STACKED MULTI CHIP PRODUCT FLASH MEMORY AND RAM
中文描述： 堆疊式多芯片產(chǎn)品，閃存和RAM
文件頁數(shù)： 83/134頁
文件大?。?/td> 2383K
代理商： S71GL064A08
50
S71GL064A based MCPs
S71GL064A_00_A2 February 8, 2005
Advance
Info rmation
Figure 6 illustrates the algorithm for the erase operation. Refer to the Erase and Program Op-
erations table in the AC Characteristics section for parameters, and Figure 18 section for
timing diagrams.
Notes:
1. See Table 10 for program command sequence.
2. See the section on DQ3 for information on the sector erase timer.
Figure 6. Erase Operation
Erase Suspend/Erase Resume Commands
The Erase Suspend command, B0h, allows the system to interrupt a sector erase operation
and then read data from, or program data to, any sector not selected for erasure. This com-
mand is valid only during the sector erase operation, including the 50 s time-out period
during the sector erase command sequence. The Erase Suspend command is ignored if writ-
ten 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 typical of 5 s (maximum of 20 s) to suspend the erase operation. However, when
the Erase Suspend command is written during the sector erase time-out, the device immedi-
ately terminates the time-out period and suspends the erase operation.
After the erase operation has been suspended, the device 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.) 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-sus-
pended. Refer to the Write Operation Status section for information on these status bits.
After an erase-suspended program operation is complete, the device 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 word program operation. Refer to the Write
Operation Status section for more information.
In the erase-suspend-read mode, the system can also issue the autoselect command se-
Sequence” section on page 41 sections for details.
To resume the sector erase operation, the system must write the Erase Resume 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
(Notes 1, 2)
Data Poll to Erasing
Bank from System
Data = FFh?
No
Yes
Erasure Completed
Embedded
Erase
algorithm
in progress
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