S29GL512N SPANSION, S29GL512N Datasheet - Page 56

• Manufacturer Part Number: S29GL512N
• Description: Page Mode Flash Memory
• Manufacturer: SPANSION

54
DQ1 = 1?
No
Yes
(Note 1)
(Note 3)
Yes
(Note 2)
No
Write next address/data pair
Write number of addresses
to program minus 1(WC)
Read DQ15 - DQ0 with
Write first address/data
Write program buffer to
address = Last Loaded
Write “Write to Buffer”
Last Loaded Address
Read DQ15 - DQ0 at
flash sector address
and Sector Address
Figure 1. Write Buffer Programming Operation
Buffer Operation?
Sector Address
FAIL or ABORT
command and
WC = WC - 1
Abort Write to
DQ7 = Data?
DQ7 = Data?
DQ5 = 1?
Address
WC = 0 ?
Yes
No
No
No
No
S29GL-N MirrorBit™ Flash Family
Yes
Yes
Yes
D a t a
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
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
page 65
write buffer programming.
Table 12 on page 63
for command sequences required for
S29GL-N_00_B3 October 13, 2006
and
Table 14 on