EVM Overview
5
SLAU738 – September 2017
Copyright © 2017, Texas Instruments Incorporated
TLV320AIC3109EVM-K
1.2.1.2
USB-MODEVM Interface Board
The USB-MODEVM board is a motherboard used to configure, control, and provide an interface between
a computer and evaluation modules with TI modular EVM form factor. The simple diagram shown in
shows only the basic features of the USB-MODEVM Interface board. The USB-MODEVM
Interface board is intended to be used in USB mode, where control of the installed EVM is accomplished
using the onboard USB controller device, the TAS1020B. Provision is made, however, for driving all the
data buses (I
2
C, SPI™, I
2
S/AC97) externally. The source of these signals is controlled by SW2 on the
USB-MODEVM. Refer to
for details on the switch settings.
Because the TLV320AIC3109EVM is a double-wide modular EVM, it is installed with connections to both
EVM positions, which connects the TLV320AIC3109-Q1 digital interface to the I
2
C control port and audio
interface of the TAS1020B.
In the factory configuration, the board is ready to use with the TLV320AIC3109EVM. To view all the
functions and configuration options available on the USB-MODEVM board, see the USB-MODEVM
Interface Board schematic in
Figure 3. USB-MODEVM Board
