AM29SL160C AMD [Advanced Micro Devices], AM29SL160C Datasheet - Page 27

• Manufacturer Part Number: AM29SL160C
• Description: 16 Megabit CMOS 1.8 Volt-only Super Low Voltage Flash Memory
• Manufacturer: AMD [Advanced Micro Devices]

After the erase operation is suspended, the system can
read array data from or program data to any sector not
selected for erasure. (The device “erase suspends” all
sectors selected for erasure.) Normal read and write
timings and command definitions apply. Reading at any
address within erase-suspended sectors produces
status data 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. See
Operation Status” on page 29
status bits.
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 operation.
See
information.
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
on page 24
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
device resumes erasing.
November 1, 2004
“Write Operation Status” on page 29
for more information.
“Autoselect Command Sequence”
for information on these
for more
“Write
Am29SL160C
Notes:
1. See
2. See
formation.
Table 12, on page 28
“DQ3: Sector Erase Timer” on page 31
No
Figure 4. Erase Operation
Command Sequence
Erasure Completed
Write Erase
from System
Data = FFH?
Data Poll
START
Yes
for erase command sequence.
Embedded
Erase
algorithm
in progress
for more in-
27