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GD25S513MDFEG Scheda tecnica(PDF) 37 Page - GigaDevice Semiconductor (Beijing) Inc. |
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GD25S513MDFEG Scheda tecnica(HTML) 37 Page - GigaDevice Semiconductor (Beijing) Inc. |
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37 / 94 page ![]() 3.3V Uniform Sector Dual and Quad Serial Flash GD25S513MD 37 8.14. Dual I/O Fast Read (DIOFR BBH or 4DIOFR BCH) The Dual I/O Fast Read command is similar to the Dual Output Fast Read command but with the capability to input the 3-Byte address (A23- 0) and a “Read Mode” Byte 2-bit per clock by SI and SO, and each bit being latched in on the rising edge of SCLK, then the memory contents are shifted out 2-bit per clock cycle from SI and SO. The command sequence is shown in followed Figure25. 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 25 Dual I/O Fast Read Sequence Diagram (ADS=0) Figure 26 Dual I/O Fast Read Sequence Diagram (ADS=1) Command 0 1 2 3 4 5 6 7 BBH 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 6 4 7 5 3 1 7 5 3 1 7 5 3 1 7 5 A23-16 A15-8 A7-0 M7-4 CS# 23 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 2 0 3 1 M3-0 Command 0 1 2 3 4 5 6 7 BBH 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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