AM29F016D_06 datasheet(20/43 Pages) AMD

20 / 43 page

Am29F016D

21444E6 November 1, 2006

D A TA

SH EE 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-

at ion. See “Wr ite Op eration Status ” fo r mo re

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 “Autoselect Command Sequence”

for more information.

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.

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

START

Write Erase

Command Sequence

Data Poll

from System

Data = FFh?

Yes

Erasure Completed

Embedded

Erase

algorithm

in progress

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