s29gl064m Meet Spansion Inc., s29gl064m Datasheet - Page 66

• Manufacturer Part Number: s29gl064m
• Description: 3.0 Volt-only Page Mode Flash Memory Featuring 0.23 ?m Mirrorbit Process Technolog
• Manufacturer: Meet Spansion Inc.

64
DQ1 = 1?
No
Yes
(Note 1)
(Note 3)
(Note 2)
Yes
No
Write next address/data pair
Write number of addresses
to program minus 1(WC)
Write first address/data
Write program buffer to
address = Last Loaded
Read DQ7 - DQ0 with
Write “Write to Buffer”
Last Loaded Address
flash sector address
and Sector Address
Read DQ7 - DQ0 at
Buffer Operation?
Sector Address
FAIL or ABORT
command and
Abort Write to
WC = WC - 1
DQ7 = Data?
DQ7 = Data?
DQ5 = 1?
Address
WC = 0 ?
Figure 3. Write Buffer Programming Operation
Yes
No
No
No
No
S29GL-M MirrorBit
Yes
Yes
Yes
Part of “Write to Buffer”
Command Sequence
Write to buffer ABORTED.
Must write “Write-to-buffer
D a t a
Abort Reset” command
Write to a different
sequence to return
sector address
to read mode.
TM
PASS
Flash Family
S h e e t
Notes:
1.
2.
3.
4.
When Sector Address is specified, any address in
the selected sector is acceptable. However, when
loading Write-Buffer address locations with data, all
addresses must fall within the selected Write-Buffer
Page.
DQ7 may change simultaneously with DQ5.
Therefore, DQ7 should be verified.
If this flowchart location was reached because
DQ5= “1”, then the device FAILED. If this flowchart
location was reached because DQ1= “1”, then the
Write to Buffer operation was ABORTED. In either
case, the proper reset command must be written
before the device can begin another operation. If
DQ1=1, write the Write-Buffer-Programming-
Abort-Reset command. if DQ5=1, write the Reset
command.
See
required for write buffer programming.
Table 34
and
Table 35
for command sequences
S29GL-M_00_B8 February 7, 2007