Texas Instruments manual DSP Subsystem in TMS320DM643x DMP, Components of the DSP Subsystem

Models: TMS320DM643x

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1.3DSP Subsystem in TMS320DM643x DMP

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DSP Subsystem in TMS320DM643x DMP

1.3DSP Subsystem in TMS320DM643x DMP

In the DM643x DMP, the DSP subsystem is responsible for performing digital signal processing for digital media applications. In addition, the DSP subsystem acts as the overall system controller, responsible for handling many system functions such as system-level initialization, configuration, user interface, user command execution, connectivity functions, and overall system control.

1.3.1 Components of the DSP Subsystem

The DSP subsystem in the DM643x DMP consists of the following components:

C64x+ Megamodule

DSP Internal Memories

Level-1 program memory (L1P)

Level-1 data memory (L1D)

Level-2 unified memory (L2)

The DSP also manages/controls all peripherals on the device. Refer to device-specific data manual for the full list of peripherals.

Figure 1-1shows the functional block diagram of the DM643x DMP and how the DSP subsystem is connected to the rest of the device. The DM643x DMP architecture uses the System Infrastructure (Switched Central Resource) to transfer data within the system.

Chapter 2 discusses the C64x+ Megamodule in more details, including its detailed block diagram.

SPRU978E–March 2008

Introduction

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Texas Instruments manual DSP Subsystem in TMS320DM643x DMP, Components of the DSP Subsystem