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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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S29GL512T11FHIyyx Fiches technique(PDF) 34 Page - Cypress Semiconductor |
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S29GL512T11FHIyyx Fiches technique(HTML) 34 Page - Cypress Semiconductor |
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34 / 105 page  Document Number: 002-00247 Rev. *G Page 34 of 105 S29GL01GT, S29GL512T 5.4.9.6 Password ASO The system can access the Password ASO by issuing the Password entry command sequence during Read Mode. This entry command does not use a sector address from the entry command. The Password appears at word locations 0 to 3 in the device address space. All other locations in the device address space are undefined. The Password ASO allows the following activities: Read Password, using device address location 0 to 3 (if not locked). Program the Password using a modified Word Programming command. Unlock the PPB Lock bit with the Password Unlock command. ASO Exit using legacy Command Set Exit command for backward software compatibility. ASO Exit using the common exit command for all ASO — alternative for a consistent exit method. 5.4.9.7 PPB ASO The system can access the PPB ASO by issuing the PPB entry command sequence during Read Mode. This entry command does not use a sector address from the entry command. The PPB bit for a sector appears in bit 0 of all word locations in the sector. The PPB ASO allows the following activities: Read PPB protection status of a sector in bit 0 of any word in the sector. Program the PPB bit using a modified Word Programming command. Erase all PPB bits with the PPB erase command. ASO Exit using legacy Command Set Exit command for backward software compatibility. ASO Exit using the common exit command for all ASO — alternative for a consistent exit method. 5.4.9.8 PPB Lock ASO The system can access the PPB Lock ASO by issuing the PPB Lock entry command sequence during Read Mode. This entry command does not use a sector address from the entry command. The global PPB Lock bit appears in bit 0 of all word locations in the device. The PPB Lock ASO allows the following activities: Read PPB Lock protection status in bit 0 of any word in the device address space. Set the PPB Lock bit using a modified Word Programming command. ASO Exit using legacy Command Set Exit command for backward software compatibility. ASO Exit using the common exit command for all ASO — alternative for a consistent exit method. 5.4.9.9 DYB ASO The system can access the DYB ASO by issuing the DYB entry command sequence during Read Mode. This entry command does not use a sector address from the entry command. The DYB bit for a sector appears in bit 0 of all word locations in the sector. The DYB ASO allows the following activities: Read DYB protection status of a sector in bit 0 of any word in the sector. Set the DYB bit using a modified Word Programming command. Clear the DYB bit using a modified Word Programming command. ASO Exit using legacy Command Set Exit command for backward software compatibility. ASO Exit using the common exit command for all ASO — alternative for a consistent exit method. |
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