TMS320DM647 datasheet(36/167 Pages) TI

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TMS320DM647/TMS320DM648

Digital Media Processor

SPRS372A – MAY 2007 – REVISED JUNE 2007

64-bit timer in the TMS320DM647/DM648 Digital Signal Processor (DSP). The timer can be

configured as a general-purpose 64-bit timer, dual general-purpose 32-bit timers, or a

watchdog timer.

SPRUEL1

TMS320DM647/DM648 DSP Multichannel Audio Serial Port (McASP) User's Guide

describes the multichannel audio serial port (McASP) in the TMS320DM647/DM648 Digital

Signal Processor (DSP). The McASP functions as a general-purpose audio serial port

optimized for the needs of multichannel audio applications. The McASP is useful for

time-division multiplexed (TDM) stream, Inter-Integrated Sound (I2S) protocols, and

intercomponent digital audio interface transmission (DIT).

SPRUEL2

TMS320DM647/DM648 DSP Enhanced DMA (EDMA) Controller User's Guide describes

the operation of the enhanced direct memory access (EDMA3) controller in the

TMS320DM647/DM648 Digital Signal Processor (DSP). The EDMA3 controller’s primary

purpose is to service user-programmed data transfers between two memory-mapped slave

endpoints on the DSP.

SPRUEL4

TMS320DM647/DM648

Peripheral

Component

Interconnect

(PCI)

User's

Guide

describes the peripheral component interconnect (PCI) port in the TMS320DM647/DM648

Digital Signal Processor (DSP). The PCI port supports connection of the C642x DSP to a

PCI host via the integrated PCI master/slave bus interface. The PCI port interfaces to the

DSP via the enhanced DMA (EDMA) controller. This architecture allows for both PCI master

and slave transactions, while keeping the EDMA channel resources available for other

applications.

SPRUEL5

TMS320DM647/DM648 DSP Host Port Interface (UHPI) User's Guide describes the host

port interface (HPI) in the TMS320DM647/DM648 Digital Signal Processor (DSP). The HPI is

a parallel port through which a host processor can directly access the CPU memory space.

The host device functions as a master to the interface, which increases ease of access. The

host and CPU can exchange information via internal or external memory. The host also has

direct access to memory-mapped peripherals. Connectivity to the CPU memory space is

provided through the enhanced direct memory access (EDMA) controller.

SPRUEL8

TMS320DM647/DM648 DSP Universal Asynchronous Receiver/Transmitter (UART)

User's Guide describes the universal asynchronous receiver/transmitter (UART) peripheral

in the TMS320DM647/DM648 Digital Signal Processor (DSP). The UART peripheral

performs serial-to-parallel conversion on data received from a peripheral device, and

parallel-to-serial conversion on data received from the CPU.

SPRUEL9

TMS320DM647/DM648 DSP VLYNQ Port User's Guide describes the VLYNQ port in the

TMS320DM647/DM648 Digital Signal Processor (DSP). The VLYNQ port is a high-speed

point-to-point serial interface for connecting to host processors and other VLYNQ compatible

devices. It is a full-duplex serial bus where transmit and receive operations occur separately

and simultaneously without interference.

SPRUEM1

TMS320DM647/DM648 DSP Video Port/VCXO Interpolated Control (VIC) Port User's

Guide discusses the video port and VCXO interpolated control (VIC) port in the

TMS320DM647/DM648 Digital Signal Processor (DSP). The video port can operate as a

video capture port, video display port, or transport stream interface (TSI) capture port. The

VIC port provides single-bit interpolated VCXO control with resolution from 9 bits to up to 16

bits. When the video port is used in TSI mode, the VIC port is used to control the system

clock, VCXO, for MPEG transport stream.

SPRUEM2

TMS320DM647/DM648 DSP Serial Port Interface (SPI) User's Guide discusses the Serial

Port Interface (SPI) in the TMS320DM647/DM648 Digital Signal Processor (DSP). This

reference guide provides the specifications for a 16-bit configurable, synchronous serial

peripheral interface. The SPI is a programmable-length shift register, used for high speed

communication between external peripherals or other DSPs.

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