參數(shù)資料
型號: M58LW064D11N1T
廠商: STMICROELECTRONICS
元件分類: PROM
英文描述: 4M X 16 FLASH 3V PROM, 110 ns, PDSO56
封裝: 14 X 20 MM, PLASTIC, TSOP-56
文件頁數(shù): 41/50頁
文件大?。?/td> 280K
代理商: M58LW064D11N1T
M58LW064D
46/50
Figure 22. Protection Register Program Flowchart and Pseudo Code
Note: PR = Protection Register
Write
PR Address, PR Data
AI06159
YES
NO
b7 = 1
Start
Write C0h
Write FFh
Read Status Register
PR Program
Sucessful
b1, b4 = 0,1
Invalid Voltage
Error
Protection Register
Program Error
Block Unprotect
Error
YES
NO
Protection Register Program Command
– write C0h
– write Protection Register Address,
Protection Register Data
do:
– read status register
while b7 = 1
Read Memory Array Command:
– write FFh
If b1 = 0, b4 = 1 Protection Register
Program Error
b3, b4 = 1,1
If b3 = 1, b4 = 1 Invalid Voltage Error
b1, b4 = 1,1
If b1 = 1, b4 = 1 Program Error due to
Protection Register Protection
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