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GD25Q127CSJS Folha de dados(PDF) 23 Page - GigaDevice Semiconductor (Beijing) Inc. |
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GD25Q127CSJS Folha de dados(HTML) 23 Page - GigaDevice Semiconductor (Beijing) Inc. |
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23 / 79 page ![]() 3.3V Uniform Sector Dual and Quad Serial Flash GD25Q127C 23 Figure12. Dual I/O Fast Read Sequence Diagram (M5-4 ≠(1, 0)) Figure12a. Dual I/O Fast Read Sequence Diagram (M5-4= (1, 0)) 7.11. Quad I/O Fast Read (EBH) 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 “Continuous Read Mode” byte and 4-dummy clock4-bit per clock by IO0, IO1, IO2, IO3, each bit being latched in during the rising edge of SCLK, then the memory contents are shifted out 4-bit per clock cycle from IO0, IO1, IO2, IO3. The command sequence is shown in followed Figure13. The first byte addressed can be at any location. The address is automatically incremented to the next higher address after each byte of data is shifted out. The Quad Enable bit (QE) of Status Register (S9) must be set to enable for the Quad I/O Fast read command. 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 Dummy 0 1 2 3 4 5 6 7 CS# SCLK 8 9 10 11 12 13 14 15 6 4 2 0 6 4 2 0 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 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 15 16 17 18 19 20 21 22 Dummy |
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