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JS28F256P30B95A 데이터시트(PDF) 87 Page - Micron Technology

부품명 JS28F256P30B95A
상세설명  Numonyx StrataFlash Embedded Memory
PDF  97 Pages
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제조업체  MICRON [Micron Technology]
홈페이지  http://www.micron.com
Logo MICRON - Micron Technology

JS28F256P30B95A 데이터시트(HTML) 87 Page - Micron Technology

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August 2008
Datasheet
Order Number: 306666-12
87
P30
A.3
Write State Machine
Figure 42 through Figure 47 show the command state transitions (Next State Table)
based on incoming commands. Only one partition can be actively programming or
erasing at a time. Each partition stays in its last read state (Read Array, Read Device
ID, Read CFI or Read Status Register) until a new command changes it. The next WSM
state does not depend on the partition’s output state.
Figure 41: Protection Register Programming Flowchart
FULL STATUS CHECK PROCEDURE
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.
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.
1
0
1
1
1
PROTECTION REGISTER PROGRAMMING PROCEDURE
Start
Write 0xC0,
PR Address
Write PR
Address & Data
Read Status
Register
SR[7] =
Full Status
Check
(if desired)
Program
Complete
Read Status
Register Data
Program
Successful
SR[3] =
SR[4] =
SR[1] =
V
PP Range Error
Program Error
Register Locked;
Program Aborted
Idle
Idle
Bus
Operation
None
None
Command
Check SR[3]:
1 =V
PP Range Error
Check SR[4]:
1 =Programming Error
Comments
Write
Write
Idle
Program
PR Setup
Protection
Program
None
Data = 0xC0
Addr = First Location to Program
Data = Data to Program
Addr = Location to Program
Check SR[7]:
1 = WSM Ready
0 = WSM Busy
Bus
Operation
Command
Comments
Read
None
Status Register Data.
Idle
None
Check SR[1]:
1 =Block locked; operation aborted
(Program Setup)
(Confirm Data)
0
0
0



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