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6.1
TLV320AIC32EVM-PDK Block Diagram
EVM Position 2
EVM Position 1
TLV320AIC32EVM
Control Interface
TLV320AIC32
TAS1020B
USB 8051
Microcontroller
USB
SPI, I C
2
I S, AC97
2
Audio Interface
Kit Operation
A block diagram of the TLV320AIC32EVM-PDK is shown in
Figure 1
. The evaluation kit consists of two
circuit boards connected together. The motherboard is designated as the USB-MODEVM Interface board,
while the daughtercard is the TLV320AIC32EVM described previously in this manual.
Figure 1. TLV320AIC32EVM-PDK Block Diagram
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. 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
Table 6
for details on the switch settings.
8
TLV320AIC32EVM and TLV320AIC32EVM-PDK User's Guide
SBAU113 – November 2005
