m58bw016bt STMicroelectronics, m58bw016bt Datasheet - Page 54

• Manufacturer Part Number: m58bw016bt
• Description: 16 Mbit 512kb X32, Boot Block, Burst 3v Supply Flash Memories
• Manufacturer: STMicroelectronics

M58BW016BT, M58BW016BB, M58BW016DT, M58BW016DB
Figure 26. Unlock Device and Program a Tuning Protected Block Flowchart
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Issue
Read
command
Add: don't care
Data: 0xFFh
DEVICE LOCKED
NO
Data: Second 32 bit
Data: First 32 bit
Add: don't care
Add: 0x00000h
Add: don't care
Add: 0x00001h
by tuning code
Device locked
Read Status
Data: 0x78h
Data: 0x78h
Register
b7 = 1
b7 = 1
b0 = 1
Reset
YES
YES
YES
DEVICE UNLOCKED
1st: Write Cycle
2nd: Write Cycle
(First part
of the tuning code)
3rd: Write Cycle
4th: Write Cycle
(Second part
of the tuning code)
TUNING PROTECTION
UNLOCK SEQUENCE
Add: location to prog.
Data: data to prog.
Add: don't care
Add: don't care
Status Register
programmed
Data: 0xFFh
Data: 0x40h
Location
b7 = 1
check
YES
Issue Read command
5th: Write Cycle
6th: Write Cycle
7th: Write Cycle
AI04502