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TMS320DM647/TMS320DM648

Digital Media Processor

SPRS372A – MAY 2007 – REVISED JUNE 2007

multichannel audio serial port (McASP) with ten serializers; four 64-bit general-purpose timers each

configurable as two independent 32-bit timers; a user-configurable 16-bit or 32-bit host-port interface

(HPI); 32 pins for general-purpose input/output (GPIO) with programmable interrupt/event generation

modes, multiplexed with other peripherals; one UART; and two glueless external memory interfaces: a

synchronous and asynchronous external memory interface (EMIFA) for slower memories/peripherals, and

a higher DDR2 SDRAM interface.

The video port peripherals provide a glueless interface to common video decoder and encoder devices.

The video port peripherals support multiple resolutions and video standards (e.g., CCIR601, ITU-BT.656,

BT.1120, SMPTE 125M, 260M, 274M, and 296M).

The video port peripherals are configurable and can support either video capture and/or video display

modes. Each video port consists of two channels (A and B) with a 5120-byte capture/display buffer that is

splittable between the two channels.

For more details on the video port peripherals, see the TMS320C64x DSP Video Port/VCXO Interpolated

Control (VIC) Port Reference Guide (literature number SPRU629).

The management data input/output (MDIO) module continuously polls all 32 MDIO addresses to

enumerate all PHY devices in the system.

The I2C and VLYNQ ports allow the device to easily control peripheral modules and/or communicate with

host processors.

The rich peripheral set provides the ability to control external peripheral devices and communicate with

external processors. For details on each of the peripherals, see the related sections later in this document

and the associated peripheral reference guides.

The DM647/DM648 devices have a complete set of development tools. These include C compilers, a DSP

assembly optimizer to simplify programming and scheduling, and a Windows™ debugger interface for

visibility into source code execution.

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TMS320DM647/TMS320DM648 Digital Media Processor

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