Da ta
Shee t
(Prelimi nar y)
Figure 7.2
Write Buffer Programming Operation
Write Unlock Cycles:
Address 555h, Data AAh
Address 2AAh, Data 55h
Unlock Cycle 1
Unlock Cycle 2
Issue
Write Buffer Load Command:
Address
SA,
Data 25h
Load Word Count to Program
Program Data to Address:
SA,
wc
wc = number of words – 1
Yes
wc = 0?
Confirm command:
SA
= 0x29h
No
Perform Polling Algorithm
(see Write Operation
Status
flowchart)
Write Next Word,
Decrement wc:
wc = wc – 1
No
Write Buffer
Abort Desired?
Yes
Write to
a
Different
Sector
Address to Cause
Write Buffer Abort
No
Polling
Status
= Done?
No
Yes
Error?
Yes
Yes
Write Buffer
Abort?
No
RESET. Issue Write Buffer
Abort Reset Command
FAIL. Issue reset command
to return to read
array
mode.
PASS. Device is in
read mode.
November 8, 2007 S29GL-P_00_A7
S29GL-P MirrorBit
®
Flash Family
29
SPANSION [ SPANSION ]
