FW912 Micron Semiconductor Products, FW912 Datasheet - Page 25

• Manufacturer Part Number: FW912
• Description: Flash Memory Technology
• Manufacturer: Micron Semiconductor Products

NOTE: 1. See Word Programming Flowchart for complete programming procedure.
4 Meg x 16 Async/Page/Burst Flash Memory
MT28F642D18_3.p65 – Rev. 3, Pub. 8/02
ERASE SUSPEND/ERASE RESUME
2. See BLOCK ERASE Flowchart for complete erasure procedure.
NO
Read Status Register
SUSPEND Command
RESUME Command
Issue READ ARRAY
ERASE Continued
Issue ERASE
Issue ERASE
PROGRAM?
PROGRAM
Complete?
Command
READ or
READ or
Flowchart
SR7 = 1?
SR6 = 1?
Figure 8
Start
Bits
YES
YES
READ
YES
2
NO
NO
PROGRAM
PROGRAM
Complete
ERASE
Loop
(Note 1)
ASYNC/PAGE/BURST FLASH MEMORY
25
BUS
OPERATION COMMAND COMMENTS
WRITE
READ
Standby
Standby
WRITE
READ
WRITE
Micron Technology, Inc., reserves the right to change products or specifications without notice.
ERASE
SUSPEND
READ
ARRAY
ERASE
RESUME
Data = B0h
Status register data
Toggle OE# or CE# to
update status register
Check SR7
1 = Ready
Check SR6
1 = Suspended
Data = FFh
Read data from block
other than that being
erased.
Data = D0h
4 MEG x 16
©2002, Micron Technology, Inc.
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