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GD25Q257DFER Datasheet(PDF) 71 Page - GigaDevice Semiconductor (Beijing) Inc. |
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GD25Q257DFER Datasheet(HTML) 71 Page - GigaDevice Semiconductor (Beijing) Inc. |
71 / 99 page 3.3V Uniform Sector Dual and Quad Serial Flash GD25Q257D 71 8.39. Read Serial Flash Discoverable Parameter (5AH) The Serial Flash Discoverable Parameter (SFDP) standard provides a consistent method of describing the functional and feature capabilities of serial flash devices in a standard set of internal parameter tables. These parameter tables can be interrogated by host system software to enable adjustments needed to accommodate divergent features from multiple vendors. The concept is similar to the one found in the Introduction of JEDEC Standard, JESD68 on CFI. SFDP is a standard of JEDEC Standard No.216B. Figure 81. Read Serial Flash Discoverable Parameter command Sequence Diagram Command 0 1 2 3 4 5 6 7 5AH CS# SCLK SI SO High-Z 8 9 10 28 29 30 31 3 2 1 0 23 22 21 24-bit address MSB 34 35 36 37 33 6 5 4 3 2 1 0 38 39 Data Out1 32 42 43 44 45 41 46 47 40 7 6 5 4 3 2 1 0 7 6 5 7 Data Out2 CS# SCLK SI SO MSB Dummy Byte |
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