S29GL-A SPANSION [SPANSION], S29GL-A Datasheet - Page 50

• Manufacturer Part Number: S29GL-A
• Description: S29GL-A MirrorBit Flash Family
• Manufacturer: SPANSION [SPANSION]

Notes:
1.
2.
3.
4.
48
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
Table 30 on page 54
and
Table 31 on page 55
DQ1 = 1?
Figure 3. Write Buffer Programming Operation
No
Yes
(Note 1)
(Note 3)
(Note 2)
Yes
No
S29GL-A MirrorBit™ Flash Family
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
Write “Write to Buffer”
Read DQ7 - DQ0 with
for command sequences required for write buffer programming.
Last Loaded Address
flash sector address
A d v a n c e
and Sector Address
Read DQ7 - DQ0 at
Buffer Operation?
FAIL or ABORT
Sector Address
command and
WC = WC - 1
Abort Write to
DQ7 = Data?
DQ7 = Data?
DQ5 = 1?
Address
WC = 0 ?
Yes
No
No
No
No
Yes
Yes
Yes
I n f o r m a t i o n
Part of “Write to Buffer”
Command Sequence
Write to buffer ABORTED.
Must write “Write-to-buffer
Abort Reset” command
Write to a different
sequence to return
sector address
to read mode.
PASS
S29GL-A_00_A3 April 22, 2005