at52sc1283j ATMEL Corporation, at52sc1283j Datasheet - Page 14

• Manufacturer Part Number: at52sc1283j
• Description: 128-mbit Flash + 32-mbit/64-mbit Psram Stack Memory
• Manufacturer: ATMEL Corporation

6.21
6.23
14
Word Program Flowchart
Full Status Check Flowchart
Word Address
Word Address
AT52SC1283J/1284J [Preliminary]
Read Status
Write Data,
Full Status
(If Desired)
Write 40,
Complete
Program
Register
SR7 =
Check
Start
Read Status
Successful
1
Register
Program
SR4 =
SR3 =
SR1 =
0
0
0
(Setup)
(Confirm)
0
1
1
1
Suspend?
Protect Error
V
No
Program
P P
Device
Error
Error
Range
Yes
Program
Suspend
Loop
6.24
6.22
Operation
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 – only the Clear Status Register
command clears the status register error bits.
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.
Operation
Write
Write
Read
Bus
Bus
Idle
Idle
Idle
Idle
Full Status Check Procedure
Word Program Procedure
Command
Command
Program
Setup
None
None
None
None
None
Data
Comments
Check SR3:
1 = V
Check SR4:
1 = Data Program Error
Check SR1:
1 = Sector locked; operation
aborted
Comments
Data = 40
Addr = Location to program
Data = Data to program
Addr = Location to program
Status register data: Toggle CE
or
OE to update status register
Check SR7
1 = WSM Ready
0 = WSM Busy
PP
Error
3530B–STKD–2/4/05