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ADC12J1600 Datasheet(PDF) 55 Page - Texas Instruments |
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ADC12J1600 Datasheet(HTML) 55 Page - Texas Instruments |
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55 / 98 page  SCLK 1 24 Single Register Access SCS SDI Command Field Data Field SDO (read mode) Data Field Hi Z Hi Z 17 16 8 A14 A13 A12 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 R/W ADC12J1600, ADC12J2700 www.ti.com SLAS969C – JANUARY 2014 – REVISED JULY 2015 7.5 Programming 7.5.1 Using the Serial Interface The serial interface is accessed using the following four pins: serial clock (SCLK), serial-data in (SDI), serial-data out (SDO), and serial-interface chip-select (SCS). Registers access is enabled through the SCS pin. SCS This signal must be asserted low to access a register through the serial interface. Setup and hold times with respect to the SCLK must be observed. SCLK Serial data input is accepted at the rising edge of this signal. SCLK has no minimum frequency requirement. SDI Each register access requires a specific 24-bit pattern at this input. This pattern consists of a read- and-write (R/W) bit, register address, and register value. The data is shifted in MSB first. Setup and hold times with respect to the SCLK must be observed (see Figure 2). SDO The SDO signal provides the output data requested by a read command. This output is high impedance during write bus cycles and during the read bit and register address portion of read bus cycles. Each register access consists of 24 bits, as shown in Figure 2. The first bit is high for a read and low for a write. The next 15 bits are the address of the register that is to be written to. During write operations, the last 8 bits are the data written to the addressed register. During read operations, the last 8 bits on SDI are ignored, and, during this time, the SDO outputs the data from the addressed register. The serial protocol details are illustrated in Figure 67. Figure 67. Serial Interface Protocol - Single Read / Write Copyright © 2014–2015, Texas Instruments Incorporated Submit Documentation Feedback 55 Product Folder Links: ADC12J1600 ADC12J2700 |
Similar Part No. - ADC12J1600_16 |
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Similar Description - ADC12J1600_16 |
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