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M58LW032 데이터시트(PDF) 56 Page - STMicroelectronics

부품명 M58LW032
상세설명  32 Mbit 2Mb x16, Uniform Block, Burst 3V Supply Flash Memory
PDF  61 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M58LW032 데이터시트(HTML) 56 Page - STMicroelectronics

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Figure 29. Protection Register Program Flowchart and Pseudo Code
Note: PR = Protection Register
Write
PR Address, PR Data
AI06159b
YES
NO
b7 = 1
Start
Write C0h
Write FFh
Read Status Register
(toggle G or E )
PR Program
Sucessful
b4 = 1
VPP Invalid Error
Protection Register
Program Error
Protection Register
Protection Error
YES
YES
YES
NO
NO
NO
Protection Register Program Command
– write C0h
– write Protection Register Address,
Protection Register Data
do:
– read status register (toggle G or E,
do not use the Read Status Register command)
while b7 = 1
Read Memory Array Command:
– write FFh
If b4 = 1 Protection Register
Program Error
b3 = 1
If b3 = 1 VPP Invalid Error
b1 = 1
If b1 = 1 Program Error due to
Protection Register Protection
Write FFh
Read Memory Array Command
– write FFh
End



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