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AM29SL160C Datasheet(PDF) 17 Page - Advanced Micro Devices |
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AM29SL160C Datasheet(HTML) 17 Page - Advanced Micro Devices |
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17 / 52 page ![]() November 1, 2004 Am29SL160C 17 Sector/Sector Block Protection and Unprotection (Note: For the following discussion, the term “sector” applies to both sectors and sector blocks. A sector block consists of two or more adjacent sectors that are protected or unprotected at the same time (see Table 5 and Table 6). Table 5. Top Boot Sector/Sector Block Addresses for Protection/Unprotection Table 6. Bottom Boot Sector/Sector Block Addresses for Protection/Unprotection The hardware sector protection feature disables both program and erase operations in any sector. The hard- ware sector unprotection feature re-enables both program and erase operations in previously protected sectors. Sector protection/unprotection is implemented via two methods. Sector / Sector Block A19–A12 Sector / Sector Block Size SA0 00000XXX 64 Kbytes SA1-SA3 00001XXX, 00010XXX, 00011XXX 192 (3x64) Kbytes SA4-SA7 001XXXXX 256 (4x64) Kbytes SA8-SA11 010XXXXX 256 (4x64) Kbytes SA12-SA15 011XXXXX 256 (4x64) Kbytes SA16-SA19 100XXXXX 256 (4x64) Kbytes SA20-SA23 101XXXXX 256 (4x64) Kbytes SA24-SA27 110XXXXX 256 (4x64) Kbytes SA28-SA30 11100XXX, 11101XXX, 11110XXX 192 (3x64) Kbytes SA31 11111000 8 Kbytes SA32 11111001 8 Kbytes SA33 11111010 8 Kbytes SA34 11111011 8 Kbytes SA35 11111100 8 Kbytes SA36 11111101 8 Kbytes SA37 11111110 8 Kbytes SA38 11111111 8 Kbytes Sector / Sector Block A19–A12 Sector / Sector Block Size SA38 11111XXX 64 Kbytes SA37-SA35 11110XXX, 11101XXX, 11100XXX 192 (3x64) Kbytes SA34-SA31 110XXXXX 256 (4x64) Kbytes SA30-SA27 101XXXXX 256 (4x64) Kbytes SA26-SA23 100XXXXX 256 (4x64) Kbytes SA22-SA19 011XXXXX 256 (4x64) Kbytes SA18-SA15 010XXXXX 256 (4x64) Kbytes SA14-SA11 001XXXXX 256 (4x64) Kbytes SA10-SA8 00001XXX, 00010XXX, 00011XXX 192 (3x64) Kbytes SA7 00000111 8 Kbytes SA6 00000110 8 Kbytes SA5 00000101 8 Kbytes SA4 00000100 8 Kbytes SA3 00000011 8 Kbytes SA2 00000010 8 Kbytes SA1 00000001 8 Kbytes SA0 00000000 8 Kbytes |
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