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M58CR064C Datasheet(PDF) 16 Page - STMicroelectronics |
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M58CR064C Datasheet(HTML) 16 Page - STMicroelectronics |
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16 / 70 page  M58CR064C, M58CR064D, M58CR064P, M58CR064Q 16/70 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 26, Locking Opera- tions 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, BBKA= Bottom 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. When addressed to a block in the Top Bank, reads Block Protection data only. 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 BBKA or BKA (3) 90h Read BBKA or BKA (2,3) ESD(3) Read CFI Query 1+ Write BBKA 98h Read BBKA(2) QD Clear Status Register 1 Write BKA 50h Block Erase 2 Write BKA 20h Write BA D0h Program 2 Write BKA 40h or 10h Write WA PD Program/Erase Suspend 1 Write BKA B0h Program/Erase Resume 1 Write BKA 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 60h Write BA 01h Block Unlock 2 Write BKA 60h Write BA D0h Block Lock-Down 2 Write BKA 60h Write BA 2Fh |
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