AM29LV033C datasheet(23/48 Pages) AMD

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Am29LV033C

gram operation. See “Write Operation Status” for more

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 sus-

pend 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 has resumed erasing.

Notes:

1. See Table 9 for erase command sequence.

2. See “DQ3: Sector Erase Timer” for more information.

Figure 4.

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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