S29GL256P11FFIV10 Spansion Inc., S29GL256P11FFIV10 Datasheet - Page 34

• Manufacturer Part Number: S29GL256P11FFIV10
• Description: IC 256M PAGE-MODE FLASH MEMORY
• Manufacturer: Spansion Inc.

32
(Note 4)
Device BUSY,
Device BUSY,
Programming?
DQ1=1?
Write Buffer
Re-Poll
Re-Poll
Read1
NO
NO
to valid data on DQ7. Depending on when the system samples the DQ7 output, it may read the status or valid
data. Even if the device has completed the program or erase operation and DQ7 has valid data, the data
outputs on DQ6-DQ0 may be still invalid. Valid data on DQ7-D00 appears on successive read cycles.
See the following for more information:
shows the Data# Polling algorithm; and
YES
YES
Device BUSY,
Read3 DQ1=1
AND DQ7 ?
Valid Data?
Re-Poll
Read 3
Read 2
DQ5=1?
Read 1
NO
YES
(Note 1)
NO
YES
Figure 7.4 Write Operation Status Flowchart
D a t a
Device BUSY,
(Note 6)
toggling?
Read 3
Re-Poll
Read 2
Operation Failed
DQ6
Write Buffer
S29GL-P MirrorBit
NO
DQ7=valid
S h e e t
START
Read 1
data?
YES
NO
Table
Figure
(Note 3)
YES
7.17, shows the outputs for Data# Polling on DQ7.
( A d v a n c e
TIMEOUT
TM
11.7, shows the Data# Polling timing diagram.
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
Flash Family
protection.
command to exit operation.
an erase operation.
(Note 2)
(Note 1)
I n f o r m a t i o n )
Programming
Operation?
Operation
Complete
toggling?
toggling?
Read 3
Read 2
Erase
DQ6
DQ2
NO
NO
NO
YES
YES
YES
S29GL-P_00_A3 November 21, 2006
Read3= valid
Erase/Suspend
Operation
Operation
Complete
Program
Program
DEVICE
ERROR
Failed
data?
Device in
Mode
NO
Figure
YES
(Note 5)
7.4,