Datasheet

Host Processor Interface
3-3
EVM Operation
Figure 3−1. DAC7654 EVM Default Jumper Setting
3.2 Host Processor Interface
The host processor drives the DAC; therefore, the DAC proper operation de-
pends on the successful configuration between the host processor and the
EVM board. In addition, a properly written code is required to operate the DAC.
A custom cable can be made specific to the host interface platform. The EVM
allows interface to the host processor through J2 header connector for the seri-
al control signals and the serial data input. The output can be monitored
through the J4 header connector.
An interface adapter card is also available for a specific TI DSP starter kit as
well as an MSP430 based microprocessor as mentioned in Chapter 1 of this
manual. Using the interface card alleviates the tedious task of building custom-
ize cables and allows easy configuration of a simple evaluation system.
This DAC EVM interfaces with any host processor capable of handling serial
communication protocols or the popular TMS320 DSP family. For more infor-
mation regarding the serial interface of the particular DAC installed, see the
specific DAC data sheet, as listed in the Related Documentation from Texas
Instruments section of this user’s guide.