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M58BW016DB Datasheet(PDF) 55 Page - STMicroelectronics |
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M58BW016DB Datasheet(HTML) 55 Page - STMicroelectronics |
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55 / 63 page  55/63 M58BW016BT, M58BW016BB, M58BW016DT, M58BW016DB Figure 27. Unlock Device and Erase a Tuning Protected Block Flowchart AI04502 Reset Device locked by tuning code Add: don't care Data: 0x78h 1st: Write Cycle Add: 0x00000h Data: First 32 bit 2nd: Write Cycle (First part of the tuning code) YES b7 = 1 Add: don't care Data: 0x78h 3rd: Write Cycle Add: 0x00001h Data: Second 32 bit 4th: Write Cycle (Second part of the tuning code) YES b7 = 1 YES NO b0 = 1 DEVICE LOCKED Add: don't care Data: 0x20h 6th: Write Cycle Add: block to erase Data: 0xD0h 7th: Write Cycle YES b7 = 1 DEVICE UNLOCKED Status Register check Block Erased TUNING PROTECTION UNLOCK SEQUENCE Add: don't care Data: 0xFFh Issue Read command 5th: Write Cycle Add: don't care Data: 0xFFh Issue Read command Read Status Register |
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