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S29GL01GP датащи(PDF) 31 Page - SPANSION |
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S29GL01GP датащи(HTML) 31 Page - SPANSION |
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31 / 81 page ![]() October 22, 2012 S29GL-P_00_A14 S29GL-P MirrorBit® Flash Family 31 Data She e t Figure 7.3 Sector Erase Operation Notes 1. See Table 12.1 on page 69 for erase command sequence. 2. See DQ3: Sector Erase Timeout State Indicator on page 39 for information on the sector erase timeout. No Write Unlock Cycles: Address 555h, Data AAh Address 2AAh, Data 55h Write Sector Erase Cycles: Address 555h, Data 80h Address 555h, Data AAh Address 2AAh, Data 55h Sector Address, Data 30h Write Additional Sector Addresses FAIL. Write reset command to return to reading array. PASS. Device returns to reading array. Perform Write Operation Status Algorithm Select Additional Sectors? Unlock Cycle 1 Unlock Cycle 2 Yes Yes Yes Yes Yes No No No No Last Sector Selected? Done? DQ5 = 1? Command Cycle 1 Command Cycle 2 Command Cycle 3 Specify first sector for erasure Error condition (Exceeded Timing Limits) Status may be obtained by reading DQ7, DQ6 and/or DQ2. Poll DQ3. DQ3 = 1? • Each additional cycle must be written within tSEA timeout • The host system may monitor DQ3 or wait tSEA to ensure acceptance of erase commands • No limit on number of sectors • Commands other than Erase Suspend or selecting additional sectors for erasure during timeout reset device to reading array data (see Figure 7.4) |
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