PF38F5070M0Q0B0 NUMONYX [Numonyx B.V], PF38F5070M0Q0B0 Datasheet - Page 108

• Manufacturer Part Number: PF38F5070M0Q0B0
• Manufacturer: NUMONYX [Numonyx B.V]

Figure 59: Protection Register Programming Flowchart
Datasheet
108
Protection Register
Address & Data
Register Data
Program Fail
Read Status
Read Status
PR Address
Write 0xC0,
Full Status
(if desired)
Complete
Write PR
Program
Register
SR[7] =
SR[4] =
SR[1] =
SR[3] =
Check
Start
1
1
0
0
0
0
1
1
(Program Setup )
(Confirm Data)
PROTECTION REGISTER PROGRAMMING PROCEDURE
Protection Register
Register Locked;
Program Aborted
V
Program Pass
PP
Range Error
FULL STATUS CHECK PROCEDURE
Operation
Operation
Program Protection Register operation addresses must be
within the Protection Register address space . Addresses
outside this space will return an error .
Repeat for subsequent programming 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 Read Array state .
SR[3] must be cleared before the Write State Machine will
allow further program attempts.
Only the Clear Staus Register command clears SR [1 , 3, 4].
If an error is detected , clear the Status register before
attempting a program retry or other error recovery.
Write
Write
Read
Bus
Bus
Idle
Idle
Idle
Idle
Command
Command
Protection
PR Setup
Program
Program
None
None
None
None
None
Numonyx™ StrataFlash
Data = 0xC0
Addr = First Location to Program
Data = Data to Program
Addr = Location to Program
Status Register Data .
Check SR[7]:
1 = WSM Ready
0 = WSM Busy
Check SR[4]:
1 =Programming Error
Check SR[1]:
1 = Block locked; operation aborted
Check SR[3]:
1 =V
PP
Range Error
Comments
Comments
®
Cellular Memory (M18)
.
309823-10
April 2008