Spectrum Digital TMS320DM365, Technical Reference

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Spectrum Digital, Inc
1-4 DM365 EVM Technical Reference
1.2 Functional Overview of the DM365 EVM
The DM365 on the EVM interfaces to on-board peripherals through the 8/16-bit wide
Async EMIF peripheral interface pins. The DDR2 memory is connected to its own
dedicated 16 bit wide bus. The Async EMIF bus is also connected to the NAND and
One NAND flash.
On board video decoders and on chip encoders interface video streams to the DM365
processor. One composite channel and one set of 3 component channel
encoder/decoder are standard on the EVM. On screen display functions are
implemented in software on the DM365 processor.
An on-board AIC3101 codec allows the DSP to transmit and receive analog audio
signals. The I
2
C bus is used for the codec control interface, while the McBSP controls
the audio stream. Signal interfacing is done through 3.5mm audio jacks that correspond
to microphone input, headphone output, line input, and line output.
The EVM includes 8 user LEDs, 16 user push button switches, and an IR interface
which provide the user with application interaction.
An in5V external power supply is used to power the board. On-board switching
voltage regulators provide the +1.2 to 1.35V CPU core voltage, +3.3V for peripherals
and +1.8V for DDR2 memory.
The DM365 EVM has a 10/100 ethernet interface which provides a standard high
speed link to other devices.
The on board media card interface allows the user to conveniently load/store data from
a variety of standard memory card formats. An on-chip Real Time Clock is integrated
into the DM365 for time based applications.
1.3 Basic Operation
The EVM is designed to work with TI’s Code Composer Studio IDE
TM
, or standard GDB
tool environments. Code Composer communicates with the board through an external
JTAG emulator.