M29W640GB NUMONYX [Numonyx B.V], M29W640GB Datasheet - Page 87

• Manufacturer Part Number: M29W640GB
• Description: 64 Mbit (8Mb x8 or 4Mb x16, Page) 3V supply Flash memory
• Manufacturer: NUMONYX [Numonyx B.V]

M29W640GH, M29W640GL, M29W640GT, M29W640GB
Appendix E
Figure 29. Write to Buffer and Program flowchart and pseudo code
Flowchart
YES
NO
DQ1 = 1
NO
Check Status Register
to Flash Block Address
Read Status Register
Last Loaded Address
Last Loaded Address
Program Address Pair
(DQ1, DQ5, DQ7) at
FAIL OR ABORT
Write to Buffer F0h
Write Buffer Data,
Program Buffer
(DQ5, DQ7) at
Block Address
Block Address
Write Next Data,
Start Address
DQ7 = Data
DQ7 = Data
Abort Write
Command,
Write n
to Buffer
DQ5 = 1
X = X-1
X = 0
Start
YES
X=n
(4)
NO
NO
YES
NO
NO
(1)
,
(5)
YES
YES
(3)
YES
Program Aborted
Write to a Different
Write to Buffer and
Block Address
Write to Buffer and Program Command
END
First Part of the
(2)
Flowchart
AI12777
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