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| AT49BV160C Datasheet, PDF (10/30 Pages) ATMEL Corporation – 16-megabit (1M x 16) 3-volt Only Flash Memory | |||
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Word Program Flowchart
Start
Write 40,
Word Address
(Setup)
Write Data, (Confirm)
Word Address
Read Status
Register
SR7 =
0
1
Full Status
Check
(If Desired)
No
Suspend?
Program
Suspend
Loop
Yes
Word Program Procedure
Bus
Operation Command Comments
Write
Program
Setup
Data = 40
Addr = Location to program
Write
Data
Data = Data to program
Addr = Location to program
Read
None
Status register data: Toggle CE or
OE to update status register
Idle
None
Check SR7
1 = WSM Ready
0 = WSM Busy
Repeat for subsequent Word Program operations.
Full status register check can be done after each program, or after a
sequence of program operations.
Write FF after the last operation to set to the Read state.
Program
Complete
Full Status Check Flowchart
Read Status
Register
SR3 =
1
0
SR4 =
1
0
SR1 =
1
0
Program
Successful
VPP Range
Error
Program
Error
Device
Protect Error
Full Status Check Procedure
Bus
Operation Command Comments
Idle
None
Check SR3:
1 = VPP Error
Idle
None
Check SR4:
1 = Data Program Error
Idle
None
Check SR1:
1 = Sector locked; operation aborted
SR3 MUST be cleared before the Write State Machine allows further program
attempts.
If an error is detected, clear the status register before continuing operations â
only the Clear Status Register command clears the status register error bits.
10 AT49BV160C(T)
3367DâFLASHâ5/04
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