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M29DW128F bảng dữ liệu(PDF) 42 Page - STMicroelectronics |
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M29DW128F bảng dữ liệu(HTML) 42 Page - STMicroelectronics |
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42 / 93 page ![]() 6 Command Interface M29DW128F 42/93 Table 15. Block Protection Commands, 8-bit Mode Table 16. Block Protection Commands, 16-bit Mode Command Bus Operations(1)(2) 1. OW Extended Block Protection Bit Address (A7-A0=’00011010’), X Don’t Care. All values in the table are in hexadecimal. 2. Grey cells represent Read cycles. The other cells are Write cycles. 1st 2nd 3rd 4th 5th 6th Add Data Add Data Add Data Add Data Add Data Add Data Set Extended Block Protection Bit 6 AAA AA 555 55 AAA 60 OW 68 OW (3) 3. A 100µs timeout is required between cycles 4 and 5. 48 OW DQ0 Verify Extended Block Protection Bit 4 AAA AA 555 55 AAA 60 OW DQ0 Enter Extended Block 3 AAA AA 555 55 AAA 88 Exit Extended Block 4 AAA AA 555 55 AAA 90 X 00 Command Bus Operations(1)(2)(3)(4) 1st 2nd 3rd 4th 5th 6th 7th Add Data Add Data Add Data Add Data Add Data Add Data Add Data Set Extended Block Protection Bit(5)(6) 6 555 AA 2AA 55 555 60 OW 68 OW 48 OW DQ0 Verify Extended Block Protection Bit 4 555 AA 2AA 55 555 60 OW DQ0 Enter Extended Block 3 555 AA 2AA 55 555 88 Exit Extended Block 4 555 AA 2AA 55 555 90 X 00 Password Program (5)(7)(8) 4 555 AA 2AA 55 555 38 X[0-3] PW [0-3] Password Verify(8)(9) 4 555 AA 2AA 55 555 C8 PWA [0-3] RPW [0-3] Password Protection Unlock(7)(10)(11) 7 555 AA 2AA 55 555 28 PWA [0] RPW [0] PWA [1] RPW [1] PWA [2] RPW [2] PWA [3] RPW [3] Set Password Protection Mode(5)(6) 6 555 AA 2AA 55 555 60 PL 68 PL 48 PL DQ0 Verify Password Protection Mode 4 555 AA 2AA 55 555 60 PL DQ0 |
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