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GD25S513MDFEG Scheda tecnica(PDF) 38 Page - GigaDevice Semiconductor (Beijing) Inc. |
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GD25S513MDFEG Scheda tecnica(HTML) 38 Page - GigaDevice Semiconductor (Beijing) Inc. |
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38 / 94 page ![]() 3.3V Uniform Sector Dual and Quad Serial Flash GD25S513MD 38 Figure 27 Dual I/O Fast Read with 4-Byte Address Sequence Diagram (ADS=0 or ADS=1) 8.15. Quad I/O Fast Read (QIOFR EBH or 4QIOFR ECH) The Quad I/O Fast Read command is similar to the Dual I/O Fast Read command but with the capability to input the 3-Byte address (A23- 0) and a “Read Mode” Byte and 4-dummy clock 4-bit per clock by IO0, IO1, IO2, IO3, and each bit being latched in on the rising edge of SCLK, then the memory contents are shifted out 4-bit per clock cycle from IO0, IO1, IO2, IO3. The first Byte addressed can be at any location. The address is automatically incremented to the next higher address in a single GD25B257D after each Byte of data is shifted out. Figure 28 Quad I/O Fast Read Sequence Diagram (ADS=0) Command 0 1 2 3 4 5 6 7 EBH CS# SCLK SI(IO0) SO(IO1) 8 9 10 11 12 13 14 15 4 0 4 0 4 0 4 0 16 17 18 19 20 21 22 23 4 0 4 0 5 1 5 1 5 1 5 1 5 1 5 1 A23-16 A15-8 A7-0 M7-0 6 2 6 2 6 2 6 2 6 2 6 2 7 3 7 3 7 3 7 3 7 3 7 3 IO2 IO3 4 5 6 7 Dummy Byte1 Byte2 Command 0 1 2 3 4 5 6 7 BCH CS# SCLK SI(IO0) SO(IO1) 8 9 10 11 12 13 14 15 6 4 2 0 6 4 2 0 16 17 18 19 20 21 22 23 6 4 2 0 7 5 3 1 7 5 3 1 7 5 3 1 A31-24 A15-8 A7-0 CS# 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 SI(IO0) SO(IO1) 6 4 2 0 6 4 2 0 6 4 2 0 6 4 2 0 7 5 3 1 7 5 3 1 7 5 3 1 7 5 3 1 SCLK 6 7 Byte1 Byte2 Byte3 Byte4 6 4 7 5 M7-4 24 25 26 27 6 4 2 0 7 5 3 1 A23-16 2 0 3 1 M3-0 |
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