The TLV320AIC310xEVM-PDK consists of two separate circuit boards, the MODEVM and the TLV320AIC310xEVM. The MODEVM can either be the USB-MODEVM or AC-MODEVM. The USB-MODEVM is built around a TAS1020B streaming audio USB controller with an 8051-based core and the AC-MODEVM is based on XMOS xCORE multicore microcontrollers. The motherboard features two positions for modular EVMs, or one double-wide serial modular EVM can be installed. The TLV320AIC310xEVM is one of the double-wide modular EVMs that is designed to work with either of the MODEVM.

The simple diagram in Figure 3-1 shows how the TLV320AIC310xEVM is connected to the MODEVM. The 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. Provisions are made, however, for driving all the data buses (I²C, SPI®, I²S, and AC97) externally. The source of these signals is controlled by SW2 on the MODEVM. See Table 3-1 for details on the switch settings for USB-MODEVM. For AC-MODEVM switching SW2 (S0) to OFF position will allow user to use external audio interface through J10 header.

The USB-MODEVM has two EVM positions that allow for the connection of two small evaluation module or one larger evaluation module. The TLV320AIC310xEVM is designed to fit over both of the smaller evaluation module slots as illustrated in Figure 3-1.