Video Port

1.1 Video Port

The video port peripheral can operate as a video capture port, video display port, or transport stream interface (TSI) capture port. It provides the following functions:

-Video capture mode:

J Capture rate up to 80 MHz.

J Two channels of 8/10-bit digital video input from a digital camera or analog camera (using a video decoder). Digital video input is in YCbCr 4:2:2 format with 8-bit or 10-bit resolution multiplexed in ITU-R BT.656 format.

J One channel of Y/C 16/20-bit digital video input in YCbCr 4:2:2 format on separate Y and Cb/Cr inputs. Supports SMPTE 260M, SMPTE 274M, SMPTE 296M, ITU-BT.1120, etc., as well as older CCIR601 interfaces.

J YCbCr 4:2:2 to YCbCr 4:2:0 horizontal conversion and ½ scaling in 8-bit 4:2:2 modes.

J Direct interface for two channels of up to 10-bit or one channel of up to 20-bit raw video from A/D converters.

-Video display mode:

J Display rate up to 110 MHz.

J One channel of continuous digital video output. Digital video output is YCbCr 4:2:2 co-sited pixel data with 8/10-bit resolution multiplexed in ITU-R BT.656 format.

J One channel of Y/C 16/20-bit digital video output in YCbCr 4:2:2 format on separate Y and Cb/Cr outputs. (Supports SMPTE 260M, SMPTE 274M, SMPTE 296M, ITU-BT.1120, etc.)

J YCbCr 4:2:0 to YCbCr 4:2:2 horizontal conversion and 2⋅ scaling of output in 8-bit 4:2:2 modes.

J Programmable clipping of BT.656 and Y/C mode output values.

J One channel of raw data output up to 20-bits for interface to RAM- DACs. Two channel synchronized raw data output.

J Synchronizes to external video controller or another video display port.

J Using the external clock, the frame timing generator provides programmable image timing including horizontal and vertical blank- ing, start of active video (SAV) and end of active video (EAV) code insertion, and horizontal and frame timing pulses.

J Generates horizontal and vertical synchronization and blanking signals and a frame synchronization signal.

1-2

Overview

SPRU629

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Texas Instruments TMS320C64x DSP manual Video Port
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TMS320C64x DSP specifications

The TMS320C64x DSP family from Texas Instruments represents a significant milestone in the realm of digital signal processing. Launched as part of the C6000 series, the C64x DSPs are designed for high-performance applications requiring intensive computational capabilities, such as telecommunications, audio processing, video processing, and industrial control systems.

One of the standout features of the TMS320C64x DSP is its VLIW (Very Long Instruction Word) architecture, which allows for an exceptionally high level of parallelism. This architecture enables multiple instructions to be executed simultaneously, boosting the overall throughput and allowing for complex data processing tasks to be completed more quickly than with conventional DSPs.

The C64x DSPs also boast an impressive clock frequency range, typically up to 1 GHz, delivering substantial computational power for real-time processing goals. Additionally, these processors feature extensive on-chip memory, including L1 and L2 cache, which significantly enhances data access speeds and helps reduce bottlenecks during high-demand processing tasks.

Another key characteristic of the TMS320C64x family is its support for advanced instruction sets optimized for specific applications. These include SIMD (Single Instruction, Multiple Data) capabilities, allowing for efficient handling of large datasets often involved in multimedia processing or complex signal manipulation.

For connectivity, these DSPs often integrate advanced interfaces such as EMIF (External Memory Interface) and McBSP (Multichannel Buffered Serial Port), facilitating seamless interaction with a variety of peripheral devices. This ensures that the DSP can suit different application needs and integrate well into various system architectures.

Texas Instruments emphasizes low power consumption with the C64x DSPs, making them ideal for portable or energy-sensitive applications. Advanced power management techniques and technologies, such as dynamic voltage and frequency scaling, are incorporated to further enhance energy efficiency without compromising performance.

In summary, the Texas Instruments TMS320C64x DSP family stands out due to its high-performance capabilities driven by a VLIW architecture, high clock speeds, extensive memory options, a rich instruction set, and advanced connectivity features, all while maintaining power efficiency. These characteristics make it an exceptional choice for developers looking to integrate robust digital signal processing into their applications, whether in telecommunications, audio and video processing, or embedded control systems.
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