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ADC3563 Datasheet(PDF) 42 Page - Texas Instruments |
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ADC3563 Datasheet(HTML) 42 Page - Texas Instruments |
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42 / 74 page  A5 A4 A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0 Register Address <11:0> Register Data <7:0> SDIO SCLK t SCLK t DSU t DH SEN t SLOADS t SLOADH RESET A11 A10 A9 A8 A7 A6 0 0 0 0 R/W Figure 8-42. Serial Register Write Timing Diagram 8.5.2.2 Register Read The device includes a mode where the contents of the internal registers can be read back using the SDIO pin. This readback mode can be useful as a diagnostic check to verify the serial interface communication between the external controller and the ADC. The procedure to read the contents of the serial registers is as follows: 1. Drive the SEN pin low 2. Set the R/W bit (A15) to 1. This setting disables any further writes to the registers. Set A[14:12] in address field to 0. 3. Initiate a serial interface cycle specifying the address of the register (A[11:0]) whose content must be read 4. The device launches the contents (D[7:0]) of the selected register on the SDIO pin on SCLK falling edge 5. The external controller can capture the contents on the SCLK rising edge A5 A4 A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0 Register Address <11:0> Register Data <7:0> SDIO SCLK SEN A11 A10 A9 A8 A7 A6 0 0 0 1 R/W t OZD t OD t ODZ Figure 8-43. Serial Register Read Timing Diagram ADC3563 SBAS990 – FEBRUARY 2021 www.ti.com 42 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: ADC3563 |
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