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AM29PDS322D データシート(PDF) 27 Page - SPANSION

部品番号 AM29PDS322D
部品情報  32 Megabit (2 M x 16-Bit) CMOS 1.8 Volt-only (1.8 V to 2.2 V) Simultaneous Read/Write Page-Mode Boot Sector Flash Memory
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AM29PDS322D データシート(HTML) 27 Page - SPANSION

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December 4, 2006 23569A5
Am29PDS322D
25
D A TA
SH EET
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 sequence. Refer to the
Autoselect Mode and Autoselect Command Sequence
sections for details.
To resume the sector erase operation, the system
must write the Erase Resume command. The address
of the erase-suspended sector is required when writ-
ing this command. Further writes of the Resume com-
mand 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
Notes:
1. See Table 10 for erase command sequence.
2. See the section on DQ3 for information on the sector
erase timer.
Figure 6.
Erase Operation



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