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GD25LB32DNIG Datasheet(PDF) 9 Page - GigaDevice Semiconductor (Beijing) Inc. |
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GD25LB32DNIG Datasheet(HTML) 9 Page - GigaDevice Semiconductor (Beijing) Inc. |
9 / 67 page 1.8V Uniform Sector Dual and Quad Serial Flash GD25LB32D 9 5. DATA PROTECTION The GD25LB32D provide the following data protection methods: ◆ Write Enable (WREN) command: The WREN command is set the Write Enable Latch bit (WEL). The WEL bit will return to reset by the following situation: -Power-Up -Write Disable (WRDI) -Write Status Register (WRSR) -Page Program (PP) -Sector Erase (SE) / Block Erase (BE) / Chip Erase (CE) -Software reset (66H+99H) -Erase Security Registers / Program Security Registers ◆ Software Protection Mode: The Block Protect (BP4, BP3, BP2, BP1, and BP0) bits define the section of the memory array that can be read but not change. ◆ Deep Power-Down Mode: In Deep Power-Down Mode, all commands are ignored except the Release from Deep Power-Down Mode command and reset command (66H+99H). Table1. GD25LB32D Protected area size (CMP=0) Status Register Content Memory Content BP4 BP3 BP2 BP1 BP0 Blocks Addresses Density Portion X X 0 0 0 NONE NONE NONE NONE 0 0 0 0 1 63 3F0000H-3FFFFFH 64KB Upper 1/64 0 0 0 1 0 62 to 63 3E0000H-3FFFFFH 128KB Upper 1/32 0 0 0 1 1 60 to 63 3C0000H-3FFFFFH 256KB Upper 1/16 0 0 1 0 0 56 to 63 380000H-3FFFFFH 512KB Upper 1/8 0 0 1 0 1 48 to 63 300000H-3FFFFFH 1MB Upper 1/4 0 0 1 1 0 32 to 63 200000H-3FFFFFH 2MB Upper 1/2 0 1 0 0 1 0 000000H-00FFFFH 64KB Lower 1/64 0 1 0 1 0 0 to 1 000000H-01FFFFH 128KB Lower 1/32 0 1 0 1 1 0 to 3 000000H-03FFFFH 256KB Lower 1/16 0 1 1 0 0 0 to 7 000000H-07FFFFH 512KB Lower 1/8 0 1 1 0 1 0 to 15 000000H-0FFFFFH 1MB Lower 1/4 0 1 1 1 0 0 to 31 000000H-1FFFFFH 2MB Lower 1/2 X X 1 1 1 0 to 63 000000H-3FFFFFH 4MB ALL 1 0 0 0 1 63 3FF000H-3FFFFFH 4KB Top Block 1 0 0 1 0 63 3FE000H-3FFFFFH 8KB Top Block 1 0 0 1 1 63 3FC000H-3FFFFFH 16KB Top Block 1 0 1 0 X 63 3F8000H-3FFFFFH 32KB Top Block 1 0 1 1 0 63 3F8000H-3FFFFFH 32KB Top Block 1 1 0 0 1 0 000000H-000FFFH 4KB Bottom Block 1 1 0 1 0 0 000000H-001FFFH 8KB Bottom Block 1 1 0 1 1 0 000000H-003FFFH 16KB Bottom Block 1 1 1 0 X 0 000000H-007FFFH 32KB Bottom Block |
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