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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AM29LV065DU101REF датащи(PDF) 29 Page - Advanced Micro Devices |
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AM29LV065DU101REF датащи(HTML) 29 Page - Advanced Micro Devices |
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29 / 54 page  February 16, 2006 Am29LV065D 29 Command Definitions Table 10. Am29LV065D Command Definitions Legend: X = Don’t care RA = Address of the memory location to be read. RD = Data read from location RA during read operation. PA = Address of the memory location to be programmed. Addresses latch on the falling edge of the WE# or CE# pulse, whichever happens later. PD = Data to be programmed at location PA. Data latches on the rising edge of WE# or CE# pulse, whichever happens first. SA = Address of the sector to be verified (in autoselect mode) or erased. Address bits A22–A16 uniquely select any sector. Notes: 1. See Table 1 for description of bus operations. 2. All values are in hexadecimal. 3. Except for the read cycle and the fourth cycle of the autoselect command sequence, all bus cycles are write cycles. 4. Unless otherwise noted, address bits A22–A12 are don’t cares. 5. No unlock or command cycles required when device is in read mode. 6. The Reset command is required to return to the read mode (or to the erase-suspend-read mode if previously in Erase Suspend) when the device is in the autoselect mode, or if DQ5 goes high (while the device is providing status information). 7. The fourth cycle of the autoselect command sequence is a read cycle. See the Autoselect Command Sequence section for more information. 8. The data is 80h for factory locked and 00h for not factory locked. 9. The data is 00h for an unprotected sector group and 01h for a protected sector group. 10. The Unlock Bypass command is required prior to the Unlock Bypass Program command. 11. The Unlock Bypass Reset command is required to return to the read mode when the device is in the unlock bypass mode. 12. The system may read and program in non-erasing sectors, or enter the autoselect mode, when in the Erase Suspend mode. The Erase Suspend command is valid only during a sector erase operation. 13. The Erase Resume command is valid only during the Erase Suspend mode. 14. Command is valid when device is ready to read array data or when device is in autoselect mode. Command Sequence (Note 1) Bus Cycles (Notes 2–4) First Second Third Fourth Fifth Sixth Addr Data Addr Data Addr Data Addr Data Addr Data Addr Data Read (Note 5) 1 RA RD Reset (Note 6) 1 XXX F0 Manufacturer ID 4 XXX AA XXX 55 XXX 90 X00 01 Device ID 4 XXX AA XXX 55 XXX 90 X01 93 SecSi Sector Factory Protect (Note 8) 4 XXX AA XXX 55 XXX 90 X03 80/00 Sector Group Protect Verify (Note 9) 4 XXX AA XXX 55 XXX 90 (SA)X02 00/01 Enter SecSi Sector Region 3 XXX AA XXX 55 XXX 88 Exit SecSi Sector Region 4 XXX AA XXX 55 XXX 90 XXX 00 Program 4 XXX AA XXX 55 XXX A0 PA PD Unlock Bypass 3 XXX AA XXX 55 XXX 20 Unlock Bypass Program (Note 10) 2 XXX A0 PA PD Unlock Bypass Reset (Note 11) 2 XXX 90 XXX 00 Chip Erase 6 XXX AA XXX 55 XXX 80 XXX AA XXX 55 XXX 10 Sector Erase 6 XXX AA XXX 55 XXX 80 XXX AA XXX 55 SA 30 Erase Suspend (Note 12) 1 XXX B0 Erase Resume (Note 13) 1 XXX 30 CFI Query (Note 14) 1 XX 98 |
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