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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AM29DS320G датащи(PDF) 28 Page - SPANSION |
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AM29DS320G датащи(HTML) 28 Page - SPANSION |
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28 / 54 page  January 27, 2003 Am29DS320G 27 AD VA NCE I N FO RM ATI O N can use DQ7, or DQ6 and DQ2 together, to determine if a sector is actively erasing or is erase-suspended. Refer to the Write Operation Status section for infor- mation on these status bits. After an erase-suspended program operation is com- plete, the bank returns to the erase-suspend-read mode. The system can determine the status of the program operation using the DQ7 or DQ6 status bits, just as in the standard Byte Program operation. Refer to the Write Operation Status section for more information. In the erase-suspend-read mode, the system can also issue the autoselect command sequence. Refer to the Autoselect Mode and Autoselect Command Sequence sections for details. To resume the sector erase operation, the system must write the Erase Resume command. The bank address of the erase-suspended bank is required when writing this command. Further writes of the Re- sume command are ignored. Another Erase Suspend command can be written after the chip has resumed erasing. Figure 5. Erase Operation START Write Erase Command Sequence (Notes 1, 2) Data Poll to Erasing Bank from System Data = FFh? No Yes Erasure Completed Embedded Erase algorithm in progress Notes: 1. See Table 13 for erase command sequence. 2. See the section on DQ3 for information on the sector erase timer. |
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