s71ws256nc0bawa30 Meet Spansion Inc., s71ws256nc0bawa30 Datasheet - Page 50

• Manufacturer Part Number: s71ws256nc0bawa30
• Description: Stacked Multi-chip Product Mcp 256/512/128 Megabit 32m/16m/8m X 16 Bit Cmos 1.8 Volt-only Simultaneous Read/write, Burst-mode Flash Memory With 128/64megabit 8m/4m X 16-bit Psram.
• Manufacturer: Meet Spansion Inc.

48
(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
Read 3
DQ1=1
Read 2
Read3
DQ5=1?
Read 1
NO
(Note 1)
YES
NO
YES
Device BUSY,
(Note 6)
toggling?
Read 3
Re-Poll
Read 2
DQ6
Write Buffer
Figure 10.6 Write Operation Status Flowchart
Operation
Failed
DQ7=valid
NO
START
Read 1
A d v a n c e
data?
YES
S71WS-Nx0 Based MCPs
NO
(Note 3)
YES
TIMEOUT
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.
I n f o r m a t i o n
(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
S71WS-N_01_A4 September 15, 2005
valid data?
Operation
Operation
Complete
Program
Read3=
DEVICE
Failed
Device in
Erase
ERROR
Mode
NO
YES
(Note 5)