M58BW032BB45T3T STMICROELECTRONICS [STMicroelectronics], M58BW032BB45T3T Datasheet - Page 50
M58BW032BB45T3T
Manufacturer Part Number
M58BW032BB45T3T
Description
32 Mbit (1Mb x32, Boot Block, Burst) 3.3V Supply Flash Memory
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.M58BW032BB45T3T.pdf
(60 pages)
- Current page: 50 of 60
- Download datasheet (912Kb)
M58BW032BT, M58BW032BB, M58BW032DT, M58BW032DB
Figure 24. Unlock Device and Change Tuning Protection Code Flowchart
50/60
Issue
Read
command
Add: don't care
DEVICE LOCKED
Data: FFh
NO
Data: Second 32 bit
Data: First 32 bit
Add: don't care
Add: don't care
by tuning code
Device locked
Add: 00000h
Add: 00001h
Read Status
Data: 78h
Data: 78h
Register
b7 = 1
b7 = 1
b0 = 1
Reset
YES
YES
YES
DEVICE UNLOCKED
1st: Write Cycle
2nd: Write Cycle
(old code,
factory setup = FFFFh)
3rd: Write Cycle
4th: Write Cycle
(old code,
factory setup = FFFFh)
TUNING PROTECTION
UNLOCK SEQUENCE
Data: Second 32 bit
Data: First 32 bit
Add: don't care
Device locked
Add: 00000h
Add: 00001h
by new code
Add: AAh
Add: AAh
Data: 48h
Data: 48h
Data: FFh
b7 = 1
b7 = 1
Reset
YES
YES
Issue Read command
5th: Write Cycle
6th: Write Cycle
7th: Write Cycle
(new code)
8th: Write Cycle
9th: Write Cycle
(new code)
AI04501b
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