m58lw064c STMicroelectronics, m58lw064c Datasheet - Page 54

• Manufacturer Part Number: m58lw064c
• Description: 64 Mbit 4mb X16, Uniform Block, Burst 3v Supply Flash Memory
• Manufacturer: STMicroelectronics

M58LW064C
Figure 27. Block Protect Flowchart and Pseudo Code
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Read Status Register
SR4, SR5 = 1,1
Block Address
Block Address
Block Protect
Write FFh
Write 60h
Write 01h
Sucessful
SR4 = 1
SR7 = 1
SR3 = 1
Start
NO
NO
NO
YES
YES
YES
YES
NO
V PEN Invalid Error
Invalid Command
Sequence Error
Block Protect
Error
If SR4 = 1, Block Protect Error
If SR3 = 1, V PEN Invalid Error
If SR4 = 1, SR5 = 1 Invalid Command Sequence
while SR7 = 1
Block Protect Command
– write 60h, Block Adress
– write 01h, Block Adress
do:
– read status register
Read Memory Array Command:
– write FFh
Error
AI06157b