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F25L32PA-100PHG Datasheet(PDF) 10 Page - Elite Semiconductor Memory Technology Inc. |
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F25L32PA-100PHG Datasheet(HTML) 10 Page - Elite Semiconductor Memory Technology Inc. |
10 / 36 page ESMT F25L32PA Elite Semiconductor Memory Technology Inc. Publication Date: Mar. 2009 Revision: 1.0 10/36 Table 3: F25L32PA Block Protection Table TOP Status Register Bit Protected Memory Area Protection Level BP2 BP1 BP0 Block Range Address Range 0 0 0 0 None None Upper 1/64 0 0 1 Block 63 3F0000H –3FFFFFH Upper 1/32 0 1 0 Block 62~63 3E0000H –3FFFFFH Upper 1/16 0 1 1 Block 60~63 3C0000H –3FFFFFH Upper 1/8 1 0 0 Block 56~63 380000H –3FFFFFH Upper 1/4 1 0 1 Block 48~63 300000H –3FFFFFH Upper 1/2 1 1 0 Block 32~63 200000H –3FFFFFH All Blocks 1 1 1 Block 0~63 000000H –3FFFFFH Block Protection (BP2, BP1, BP0) The Block-Protection (BP2, BP1, BP0) bits define the size of the memory area, as defined in Table 3, to be software protected against any memory Write (Program or Erase) operations. The Write Status Register (WRSR) instruction is used to program the BP2, BP1, BP0 bits as long as WP is high or the Block- Protection-Look (BPL) bit is 0. Chip Erase can only be executed if Block-Protection bits are all 0. After power-up, BP2, BP1 and BP0 are set to1. Block Protection Lock-Down (BPL) WP pin driven low (VIL), enables the Block-Protection- Lock-Down (BPL) bit. When BPL is set to 1, it prevents any further alteration of the BPL, BP2, BP1, and BP0 bits. When the WP pin is driven high (VIH), the BPL bit has no effect and its value is “Don’t Care”. After power-up, the BPL bit is reset to 0. |
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