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GD25LR128D 데이터시트(PDF) 46 Page - GigaDevice Semiconductor (Beijing) Inc. |
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GD25LR128D 데이터시트(HTML) 46 Page - GigaDevice Semiconductor (Beijing) Inc. |
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46 / 68 page ![]() 1.8V Uniform Sector Dual and Quad Serial Flash GD25LR128D 46 Figure31. Set Read Parameters command Sequence Diagram CS# SCLK IO0 IO1 IO2 IO3 0 1 2 3 Command C0H P4 P0 P6 P2 P7 P3 P5 P1 Read Parameters 7.30. Burst Read with Wrap (0CH) The “Burst Read with Wrap (0CH)” command provides an alternative way to perform the read operation with “Wrap Around ” in QPI mode. This command is similar to the “Fast Read (0BH)” command in QPI mode, except the addressing of the read operation will “Wrap Around” to the beginning boundary of the “Wrap Around” once the ending boundary is reached. The “Wrap Length” and the number of dummy clocks can be configured by the “Set Read Parameters (C0H)” command. Figure32. Burst Read with Wrap command Sequence Diagram CS# SCLK IO0 IO1 IO2 IO3 0 1 2 3 4 5 Command 0CH 20 12 16 8 6 7 8 9 10 4 0 4 0 4 21 13 17 9 5 1 5 1 5 22 14 18 10 6 2 6 2 6 23 15 19 11 7 3 7 3 7 A23-16 A15-8 A7-0 Dummy* 11 12 13 14 IOs switch from Input to output Byte1 Byte2 *"Set Read Parameters" Command (C0H) can set the number of dummy clocks 4 0 4 0 5 1 5 1 6 2 6 2 7 3 7 3 |
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