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M58WR032EB データシート(PDF) 17 Page - STMicroelectronics |
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M58WR032EB データシート(HTML) 17 Page - STMicroelectronics |
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17 / 81 page  17/81 M58WR032ET, M58WR032EB ■ The second Bus Write cycle latches the block address. The lock status can be monitored for each block using the Read Electronic Signature command. Locked-Down blocks revert to the locked (and not locked-down) state when the device is reset on power-down. Table 13. shows the Lock Status af- ter issuing a Block Lock-Down command. Refer to the section, Block Locking, for a detailed explana- tion and APPENDIX C., Figure 27., Locking Oper- ations Flowchart and Pseudo Code, for a flowchart for using the Lock-Down command. Table 5. Standard Commands Note: 1. X = Don’t Care, WA=Word Address in targeted bank, RD=Read Data, SRD=Status Register Data, ESD=Electronic Signature Data, QD=Query Data, BA=Block Address, BKA= Bank Address, PD=Program Data, PRA=Protection Register Address, PRD=Protection Register Data, CRD=Configuration Register Data. 2. Must be same bank as in the first cycle. The signature addresses are listed in Table 6. 3. Any address within the bank can be used. Commands Bus Operations 1st Cycle 2nd Cycle Op. Add Data Op. Add Data Read Array 1+ Write BKA FFh Read WA RD Read Status Register 1+ Write BKA 70h Read BKA(2) SRD Read Electronic Signature 1+ Write BKA 90h Read BKA(2) ESD Read CFI Query 1+ Write BKA 98h Read BKA(2) QD Clear Status Register 1 Write BKA 50h Block Erase 2 Write BKA or BA(3) 20h Write BA D0h Program 2 Write BKA or WA(3) 40h or 10h Write WA PD Program/Erase Suspend 1 Write X B0h Program/Erase Resume 1 Write X D0h Protection Register Program 2 Write PRA C0h Write PRA PRD Set Configuration Register 2 Write CRD 60h Write CRD 03h Block Lock 2 Write BKA or BA(3) 60h Write BA 01h Block Unlock 2 Write BKA or BA(3) 60h Write BA D0h Block Lock-Down 2 Write BKA or BA(3) 60h Write BA 2Fh |
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