S71GS128NB0 SPANSION [SPANSION], S71GS128NB0 Datasheet - Page 70

• Manufacturer Part Number: S71GS128NB0
• Description: 128N based MCPs
• Manufacturer: SPANSION [SPANSION]

70
DQ1 = 1?
be at V
may result. WP# has an internal pullup; when unconnected, WP# is at V
Figure 2
and Program Operations–“AC Characteristics” section for parameters, and
14
No
Yes
for timing diagrams.
(Note 1)
(Note 3)
Yes
(Note 2)
HH
illustrates the algorithm for the program operation. Refer to the Erase
for operations other than accelerated programming, or device damage
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 ?
No
Yes
No
No
No
S29GLxxxN MirrorBit
A d v a n c e
Yes
Yes
Yes
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
TM
to read mode.
PASS
Flash Family
I n f o r m a t i o n
Notes:
1. When Sector Address is specified, any
2. DQ7 may change simultaneously with DQ5.
3. If this flowchart location was reached
4. See
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.
Therefore, DQ7 should be verified.
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.
required for write buffer programming.
Table 12
for command sequences
S29GLxxxN_MCP_A1 December 15, 2004
IH
Figure
.