S29GL256P90FFIR20 Spansion Inc., S29GL256P90FFIR20 Datasheet - Page 37

• Manufacturer Part Number: S29GL256P90FFIR20
• Description: IC 256M PAGE-MODE FLASH MEMORY
• Manufacturer: Spansion Inc.

November 17, 2010 S29GL-P_00_A13
NO
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
DQ6 Toggles between
Read_1 & Read_2
Read_2 & Read_3
Read_1 DQ5 is
Read_1 DQ1 is
program and
WriteBuffer
Read_1
Read_2
Read_3
START
YES
and
NO
set
set
Figure 7.4 Write Operation Status Flowchart
YES
YES
D a t a
S29GL-P MirrorBit
WRITE ABORT
S h e e t
TIME OUT
RETURN
RETURN
Table
Figure
NO
7.17, shows the outputs for Data# Polling on DQ7.
11.7, shows the Data# Polling timing diagram.
®
Flash Family
- DQ 6 toggles when programming
- DQ 6 and DQ 2 toggle when erasing
- DQ 2 toggles when erase suspend
- DQ 1 set when program error
- DQ 5 set when time out
DQ2 Toggles
Read_1
Read_2
YES
NO
SUSPEND
RETURN
RETURN
DONE
Figure
7.4,
37