D a t a S h e e t ( A d v a n c e I n f o r m a t i o n )
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
Confirm command:
wc = 0?
No
SA = 0x29h
Wait 4 ms
(Recommended)
Write Next Word,
Decrement wc:
wc = wc – 1
No
Write Buffer
Abort Desired?
Perform Polling Algorithm
(see Write Operation Status
flowchart)
Yes
Write to a Different
Sector Address to Cause
Write Buffer Abort
Yes
Polling Status
= Done?
No
No
Error?
Yes
Yes
Write Buffer
Abort?
No
RESET. Issue Write Buffer
Abort Reset Command
PASS. Device is in
read mode.
FAIL. Issue reset command
to return to read array mode.
24
S29GL-P MirrorBitTM Flash Family
S29GL-P_00_A3 November 21, 2006
SPANSION [ SPANSION ]
