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AM29PLI60C 数据表(PDF) 21 Page - Advanced Micro Devices |
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AM29PLI60C 数据表(HTML) 21 Page - Advanced Micro Devices |
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21 / 44 page  20 Am29PL160C June 12, 2002 Command Definitions Table 10. Am29PL160C 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 A19–A12 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. Data bits DQ15–DQ8 are don’t cares for unlock and command cycles. 5. Address bits A19–A11 are don’t cares for unlock and command cycles, unless SA or PA required. 6. No unlock or command cycles required when reading array data. 7. The Reset command is required to return to reading array data when device is in the autoselect mode, or if DQ5 goes high (while the device is providing status data). 8. The fourth cycle of the autoselect command sequence is a read cycle. 9. The data is 00h for an unprotected sector and 01h for a protected sector. See “Autoselect Command Sequence” for more information. 10. Command is valid when device is ready to read array data or when device is in autoselect mode. 11. The Unlock Bypass command is required prior to the Unlock Bypass Program command. 12. The Unlock Bypass Reset command is required to return to reading array data when the device is in the unlock bypass mode. 13. 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. 14. The Erase Resume command is valid only during the Erase Sus- pend mode. Command Sequence (Note 1) Bus Cycles (Notes 2–5) First Second Third Fourth Fifth Sixth Addr Data Addr Data Addr Data Addr Data Addr Data Addr Data Read (Note 6) 1 RA RD Reset (Note 7) 1 XXX F0 Manufacturer ID Word 4 555 AA 2AA 55 555 90 X00 01 Byte AAA 555 AAA Device ID, Bottom Boot Block Word 4 555 AA 2AA 55 555 90 X01 2245 Byte AAA 555 AAA X02 45 Sector Protect Verify (Note 9) Word 4 555 AA 2AA 55 555 90 (SA) X02 XX00 XX01 Byte AAA 555 AAA (SA) X04 00 01 CFI Query (Note 10) Word 1 55 98 Byte AA Program Word 4 555 AA 2AA 55 555 A0 PA PD Byte AAA 555 AAA Unlock Bypass Word 3 555 AA 2AA 55 555 20 Byte AAA 555 AAA Unlock Bypass Program (Note 11) 2 XXX A0 PA PD Unlock Bypass Reset (Note 12) 2 XXX 90 XXX 00 Chip Erase Word 6 555 AA 2AA 55 555 80 555 AA 2AA 55 555 10 Byte AAA 555 AAA AAA 555 AAA Sector Erase Word 6 555 AA 2AA 55 555 80 555 AA 2AA 55 SA 30 Byte AAA 555 AAA AAA 555 Erase Suspend (Note 13) 1 XXX B0 Erase Resume (Note 14) 1 XXX 30 Temporary Unprotect Enable Word 4 555 AA 2AA 55 555 E0 XXX 01 Byte AAA 555 AAA Temporary Unprotect Disable Word 4 555 AA 2AA 55 555 E0 XXX 00 Byte AAA 555 AAA |
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