參數(shù)資料
型號: GE28F640W30TD70
廠商: INTEL CORP
元件分類: PROM
英文描述: 4M X 16 FLASH 1.8V PROM, 70 ns, PBGA56
封裝: 0.75 MM PITCH, VFBGA-56
文件頁數(shù): 82/104頁
文件大?。?/td> 1443K
代理商: GE28F640W30TD70
28F640W30, 28F320W30, 28F128W30
Datasheet
Intel Wireless Flash Memory (W30)
June 2005
Order Number: 290702, Revision: 011
79
.
Figure 35.
Protection Register Programming Flowchart
FULL STATUS CHECK PROCEDURE
Protection Program operations 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.
SR[3] MUST be cleared before the WSM will allow further
program attempts.
Only the Clear Staus Register command clears SR[4:3,1].
If an error is detected, clear the status register before
attempting a program retry or other error recovery.
Yes
No
1,1
1,0
1,1
PROTECTION REGISTER PROGRAMMINGPROCEDURE
Start
Write C0h
Addr=Prot addr
Write Protect.
Register
Address / Data
Read Status
Register
SR[7] = 1?
Full Status
Check
(if desired)
Program
Complete
Read SRD
Program
Successful
SR[4:3] =
SR[4,1] =
V
PP Range Error
Programming Error
Locked-Register
Program Aborted
Standby
Bus
Operation
Command
SR[1] SR[3] SR[4]
01
1
V
PP Error
0
1
Protection register
program error
Comments
Write
Standby
Protection
Program
Setup
Protection
Program
Data = C0h
Addr = Protection address
Data = Data to program
Addr = Protection address
Check SR[7]
1 = WSM Ready
0 = WSM Busy
Bus
Operation
Command
Comments
Read
Read SRD
Toggle CE# or OE# to update SRD
Standby
1
0
1
Register locked;
Operation aborted
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