Texas Instruments DS320PR810-RSC-EVM, User Manual, Page: 4 / 32

2 Description
2.1 DS320PR810 5-Level I/O Control Inputs
Each DS320PR810 features 5-level input pins (MODE, GAIN0, GAIN1, RX_DET, EQ0_0/ADDR0, EQ1_0/
ADDR1, EQ0_1, and EQ1_1) that are used to control the configuration of the device. These 5-level inputs
use a resistor divider to help set the four valid levels to provide a wider range of control settings.
Table 2-1. Five-Level Control Pin Settings
PIN LEVEL PIN SETTING
L0 1 kΩ to GND
L1 8.25 kΩ to GND
L2 24.9 kΩ to GND
L3 75 kΩ to GND
L4 Float
2.2 DS320PR810 Modes of Operation
Each DS320PR810 can be configured to operate in either Pin Mode, SMBus with I2C Slave Mode, or SMBus
with I2C Master Mode. The mode of operation of the DS320PR810 is determined by the pin strap setting on the
MODE pin as shown in
Table 2-2 .
Table 2-2. Modes of Operation
MODE PIN LEVEL MODE OF OPERATION
L0 Pin Mode
L1
SMBus Mode or I2C Master
Mode
L2 SMBus Mode or I2C Slave Mode
L3 RESERVED
L4
RESERVED
Description www.ti.com
4 DS320PR810-RSC-EVM User's Guide SNLU297 – MAY 2021
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