ADS9110 Datasheet, PDF (21/62 Pages) Texas Instruments – 18-Bit, 2-MSPS, 15-mW, SAR ADC

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ADS9110
SBAS629A – OCTOBER 2015 – REVISED OCTOBER 2015
7.3.2 Interface Module
The interface module facilitates the communication and data transfer between the device and the host controller.
As shown in Figure 41, the module comprises of shift registers (both input and output), configuration registers,
and a protocol unit.
Converter Module
Interface Module
Shift Registers
Output Shift Register (OSR)
D19
D18
D1
D0
20 Bits
20 Bits
B19
B18
B1
B0
Input Shift Register (ISR)
Command Processor
Configuration Registers
SCLK
Counter
RST
CONVST
CS
SCLK
SDI
SDO-0
SDO-1
SDO-2
SDO-3
RVS
Figure 41. Interface Module
The Pin Configuration and Functions section provides descriptions of the interface pins; the Data Transfer Frame
section details the functions of shift registers, the SCLK counter, and the command processor; the Data Transfer
Protocols section details supported protocols; and the Register Maps section explains the configuration registers
and bit settings.
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