參數(shù)資料
型號(hào)： W78M64V-70SBM
廠商： WHITE ELECTRONIC DESIGNS CORP
元件分類(lèi)： PROM
英文描述： 8M X 64 FLASH 3.3V PROM MODULE, 70 ns, PBGA159
封裝： 13 X 22 MM, 1.27 MM PITCH, PLASTIC, BGA-159
文件頁(yè)數(shù)： 15/54頁(yè)
文件大?。?/td> 1349K
代理商： W78M64V-70SBM
22
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic Designs
W78M64V-XSBX
July 2006
Rev. 4
White Electronic Designs Corp. reserves the right to change products or specications without notice.
START
SecSi
Sector Entry
Write AAh to address 555h
Write 55h to address 2AAh
Write 88h to a address 555h
TM
SecSi Sector
Protection Entry
Write AAh to address 555h
Write 55h to address 2AAh
Write 60h to a address 555h
PLSCNT = 1
Protect SecSi Sector:
write 68h to sector address
with A7-A0 = 00011010
Time out 256 s
Verify SecSi Sector:
write 48h to sector address
with A7-A0 = 00011010
Read from sector address
with A7-A0 = 00011010
Increment PLSCNT
SecSi Sector Entry
SecSi Sector Protection
No
Device Failed
Data = 01h?
Yes
SecSi Sector
Protection Completed
SecSi Sector Exit
Write 555h/AAh
Write 2AAh/55Ah
Write SA0+555h/90h
Write XXXh/00h
SecSi Secto r Exit
PLSCNT = 25?
FIGURE 4. SECSI SECTOR PROTECTION ALGORITHM
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