D A T A S H E E T
After an erase-suspended program operation is com-
plete, the system can once again read array data within
non-suspended sectors. The system can determine
the status of the program operation using the DQ7 or
DQ6 status bits, just as in the standard program oper-
ation. See “Write Operation Status” for more
information.
START
Write Erase
Command Sequence
The system may also write the autoselect command
sequence when the device is in the Erase Suspend
mode. The device allows reading autoselect codes
even at addresses within erasing sectors, since the
codes are not stored in the memory array. When the
device exits the autoselect mode, the device reverts to
the Erase Suspend mode, and is ready for another
valid operation. See “Autoselect Command Sequence”
for more information.
Data Poll
from System
Embedded
Erase
algorithm
in progress
No
Data = FFh?
The system must write the Erase Resume command
(address bits are “don’t care”) to exit the erase suspend
mode and continue the sector erase operation. Further
writes of the Resume command are ignored. Another
Erase Suspend command can be written after the de-
vice has resumed erasing.
Yes
Erasure Completed
Notes:
1. See the appropriate Command Definitions table for erase command sequence.
2. See “DQ3: Sector Erase Timer” for more information.
Figure 3. Erase Operation
18
Am29F016D
21444E6 November 1, 2006
AMD [ AMD ]
