参数资料
型号: W78M32VP110BC
厂商: WHITE ELECTRONIC DESIGNS CORP
元件分类: PROM
英文描述: 8M X 32 FLASH 3.3V PROM, 110 ns, PBGA159
封装: 13 X 22 MM, 1.27 MM PITCH, PLASTIC, BGA-159
文件页数: 26/51页
文件大小: 1637K
代理商: W78M32VP110BC
32
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic Designs
W78M32VP-XBX
January 2010
Rev. 12
White Electronic Designs Corp. reserves the right to change products or specications without notice.
Write Unlock Cycles:
Address 555h, Data AAh
Address 2AAh, Data 55h
Issue
Write Buffer Load Command:
Address SA, Data 25h
Load Word Count to Program
Program Data to Address:
SA, wc
Unlock Cycle 1
Unlock Cycle 2
wc = number of words – 1
Yes
No
wc = 0?
Write Buffer
Abort Desired?
Write Buffer
Abort?
Polling Status
= Done?
Error?
FAIL. Issue reset command
to return to read array mode.
Write to a Different
Sector Address to Cause
Write Buffer Abort
PASS. Device is in
read mode.
Confirm command:
SA = 0x29h
Perform Polling Algorithm
(see Write Operation Status
flowchart)
Write Next Word,
Decrement wc:
wc = wc – 1
RESET. Issue Write Buffer
Abort Reset Command
FIG: 6 WRITE BUFFER PROGRAMMING OPERATION
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