Datasheet

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ADS7845EVM
ADS7845
X+
X-
Y+
Y-
VBAT
AUX
MOSI
MISO
SCLK
SS
PENIRQ
EVM Position 1
EVM Position 2
I S, AC97
2
Audio Interface
Control Interface
SPI, I C
2
TAS1020B
USB 8051
Microcontroller
USB
Kit Operation
Figure 1. ADS7845EVM-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.
ADS7845EVM and ADS7845EVM-PDK6 SBAU122 – March 2006
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