306666-11 Datasheet, PDF (79/99 Pages) Numonyx B.V – Numonyx StrataFlash Embedded Memory

P30
Appendix B Flowcharts
Figure 38: Word Program Flowchart
WORD PROGRAM PROCEDURE
Start
Write 0x40,
(Setup)
Word Address
Write Data,
(Confirm)
Word Address
Read Status
Register
SR[7] = ⁰
No
Suspend?
Program
Suspend
Loop
Yes
1
Full Status
Check
(if desired)
Bus
Operation ^Command
Comments
Program Data = 0x40
Write
Setup Addr = Location to program
Write
Data = Data to program
Data _{Addr = Location to program}
Read None Status register data
Check SR[7]
Idle
None 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 0xFF after the last operation to set to the Read Array
state.
Program
Complete
Read Status
Register
1
SR[3] =
0
SR[4] = ¹
0
SR[1] = ¹
0
Program
Successful
FULL STATUS CHECK PROCEDURE
V_PP Range
Error
Bus
Command
Operation
Comments
Idle
None ^{Check SR[3]:}
1 = V Error
PP
Check SR[4]:
Idle
None _{1 = Data Program Error}
Program
Error
Check SR[1]:
Idle
None
1 = Block locked; operation aborted
Device
Protect Error
If an error is detected, clear the Status Register before
continuing operations - only the Clear Staus Register
command clears the Status Register error bits.
November 2007
Order Number: 306666-11
Datasheet
79