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AD9511-VCO/PCB 数据表(PDF) 43 Page - Analog Devices |
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AD9511-VCO/PCB 数据表(HTML) 43 Page - Analog Devices |
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43 / 60 page  AD9511 Rev. A | Page 43 of 60 Table 21. Serial Control Port, 16-Bit Instruction Word, MSB First MSB LSB I15 I14 I13 I12 I11 I10 I9 I8 I7 I6 I5 I4 I3 I2 I1 I0 R/W W1 W0 A12 = 0 A11 = 0 A10 = 0 A9 = 0 A8 = 0 A7 = 0 A6 A5 A4 A3 A2 A1 A0 CSB SCLK DON'T CARE SDIO A12 W0 W1 R/W A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0 DON'T CARE DON'T CARE DON'T CARE 16-BIT INSTRUCTION HEADER REGISTER (N) DATA REGISTER (N – 1) DATA Figure 46. Serial Control Port Write—MSB First, 16-Bit Instruction, 2 Bytes of Data CSB SCLK SDIO SDO REGISTER (N) DATA 16-BIT INSTRUCTION HEADER REGISTER (N – 1) DATA REGISTER (N – 2) DATA REGISTER (N – 3) DATA A12 W0 W1 R/W A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 DON'T CARE DON'T CARE DON'T CARE DON'T CARE D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0 Figure 47. Serial Control Port Read—MSB First, 16-Bit Instruction, 4 Bytes od Data tS DON'T CARE DON'T CARE W1 W0 A12 A11 A10 A9 A8 A7 A6 A5 D4 D3 D2 D1 D0 DON'T CARE DON'T CARE R/W tDS tDH tHI tLO tCLK tH CSB SCLK SDIO Figure 48. Serial Control Port Write—MSB First, 16-Bit Instruction, Timing Measurements DATA BIT N– 1 DATA BIT N CSB SCLK SDIO SDO tDV Figure 49. Timing Diagram for Serial Control Port Register Read CSB SCLK DON'T CARE DON'T CARE 16-BIT INSTRUCTION HEADER REGISTER (N) DATA REGISTER (N + 1) DATA SDIO DON'T CARE DON'T CARE A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 D1 D0 R/W W1 W0 D2 D3 D4 D5 D6 D7 D0 D1 D2 D3 D4 D5 D6 D7 Figure 50. Serial Control Port Write—LSB First, 16-Bit Instruction, 2 Bytes Data |
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