s71pl512nd0 Meet Spansion Inc., s71pl512nd0 Datasheet - Page 37

• Manufacturer Part Number: s71pl512nd0
• Description: Two S29pl256n Devices 32 M X 16-bit Cmos 3.0-volt Only Simultaneous Read/write, Page-mode Flash Memory
• Manufacturer: Meet Spansion Inc.

November 23, 2005 S29PL-N_M0_A4
(Note 4)
Device BUSY,
Device BUSY,
Programming?
Write Buffer
DQ1=1?
Re-Poll
Re-Poll
Read3
NO
NO
YES
YES
Device BUSY,
AND DQ7 ≠
Valid Data?
Re-Poll
DQ1=1
Read 3
Read 2
Read3
DQ5=1?
Read 1
NO
(Note 1)
YES
NO
Figure 9.4 Write Operation Status Flowchart
YES
P r e l i m i n a r y
Device BUSY,
(Note 6)
toggling?
Read 3
Re-Poll
Read 2
DQ6
Write Buffer
Operation
S29PL-N MirrorBit™ Flash Family
Failed
DQ7=valid
NO
START
Read 1
data?
YES
NO
(Note 3)
YES
Notes:
1. DQ6 is toggling if Read2 DQ6 does not equal Read3 DQ6.
2. DQ2 is toggling if Read2 DQ2 does not equal Read3 DQ2.
3. May be due to an attempt to program a 0 to 1. Use the RESET
4. Write buffer error if DQ1 of last read =1.
5. Invalid state, use RESET command to exit operation.
6. Valid data is the data that is intended to be programmed or all 1's for
7. Data polling algorithm valid for all operations except advanced sector
command to exit operation.
protection.
an erase operation.
TIMEOUT
(Note 2)
(Note 1)
Programming
Operation?
Operation
Complete
toggling?
toggling?
Read 3
Read 2
Erase
DQ6
DQ2
NO
NO
NO
YES
YES
YES
Erase/Suspend
valid data?
Operation
Operation
Complete
Program
Read3=
DEVICE
Failed
Device in
Erase
ERROR
Mode
NO
YES
(Note 5)
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