參數(shù)資料
型號(hào): W19B320ABBBG
廠商: WINBOND ELECTRONICS CORP
元件分類: PROM
英文描述: 2M X 16 FLASH 3V PROM, 70 ns, PBGA48
封裝: 6 X 8 MM, 0.80 MM PITCH, TFBGA-48
文件頁(yè)數(shù): 27/53頁(yè)
文件大?。?/td> 479K
代理商: W19B320ABBBG
W19B320AT/B
Publication Release Date: December 27, 2005
- 33 -
Revision A4
7.8 Security Sector Protect Verify
START
Write 60h to
any address
Write 40h to Security
Sector Address
with A6 = 0
A1 = 1, A0 = 0
Read from Security
Sector address
with A6 = 0
A1 = 1, A0 = 0
If data = 00h,
Security Sector is
unprotected.
If data = 01h,
Security Sector is
producted.
Remove
V IH or
V ID
from #RESET
Write reset
command
Security Sector
Protect Verify
complete
#RESET =
V IH
V ID
or
Wait 1
μ s
Enter Security
Sector
Exit Security
Sector
7.9 Program Algorithm
START
Write Program
Command Sequence
Data Poll
from System
Verify Data?
Increment Address
Yes
Last Address?
Yes
Programming
Completed
Embedded
Program
algorithm
in progress
No
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