Spectrum Digital TMS320DM368, Technical Reference

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Spectrum Digital, Inc
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2.8.1 MSP430
The DM368 EVM incorporates infrared remote, interface using a MSP430
microcontroller. The I
2
C interface is used on the DM368 processor to communicate to
the MSP430. The MSP430 acts as a slave device on the I
2
C bus.
2.9 Daughter Card Interfaces
The EVM provides expansion connectors that can be used to accept plug-in daughter
cards. The daughter card allows users to build on their EVM platform to extend its
capabilities and provide customer and application specific interfaces. The
Asynchronous EMIF is brought out to J14. The video digital output port is brought out to
the daughter card interface along with I/O and imager interface is brought out to a
DIN96 connector as detailed previously.
2.10 DM368 CPU/Video Clocks
The DM368 EVM uses a 24 Megahertz crystal to generate the main input clock. The
DM368 has multiple internal PLLs which can multiply the input clock to generate the
internal clocks. The PLL’s multipliers are set via software on the DM368 device.
The Real Time clock uses a 32,768 hertz crystal.