2 MEG x 16
ASYNC/PAGE/BURST FLASH MEMORY
Figure 7
ERASE SUSPEND/ERASE RESUME
Flowchart
BUS
OPERATION COMMAND COMMENTS
WRITE
ERASE
SUSPEND
Data = B0h
Start
READ
Status register data
Toggle OE# or CE# to
update status register.
Issue ERASE
SUSPEND Command
Standby
Standby
WRITE
READ
Check SR7
1 = Ready
Check SR6
1 = Suspended
Read Status Register
Bits
READ
ARRAY
Data = FFh
Read data from block
other than that being
erased.
NO
SR7 = 1?
WRITE
ERASE
Data = D0h
RESUME
YES
NO
SR6 = 1?
ERASE
Complete
YES
PROGRAM
READ or
PROGRAM?
READ
Issue READ ARRAY
Command
PROGRAM
Loop
(Note 1)
READ or
PROGRAM
Complete?
NO
YES
Issue ERASE
RESUME Command
2
ERASE Continued
NOTE: 1. See Word Programming Flowchart for complete programming procedure.
2. See BLOCK ERASE Flowchart for complete erasure procedure.
2 Meg x 16 Async/Page/Burst Flash Memory
MT28F322D20FH_4.p65 – Rev. 4, Pub. 7/02
Micron Technology, Inc., reserves the right to change products or specifications without notice.
©2002, Micron Technology, Inc.
19
MICRON [ MICRON TECHNOLOGY ]
