Manuals / Texas Instruments / Computer Equipment / Network Card

Texas Instruments TMS320C64x DSP manual Discusses operation of the video capture port

Models: TMS320C64x DSP

1 306
Download 306 pages 13.79 Kb
Page 6
Image 6

Contents

2.6 Video Port Throughput and Latency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-132.6.1 Video Capture Throughput . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-132.6.2 Video Display Throughput . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

2.7 Video Port Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-162.7.1 Video Port Control Register (VPCTL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-172.7.2 Video Port Status Register (VPSTAT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-202.7.3 Video Port Interrupt Enable Register (VPIE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-212.7.4 Video Port Interrupt Status Register (VPIS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24

3 Video Capture Port

3-1

Discusses operation of the video capture port.

3.1 Video Capture Mode Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23.2 BT.656 Video Capture Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33.2.1 BT.656 Capture Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33.2.2 BT.656 Timing Reference Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-43.2.3 BT.656 Image Window and Capture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-63.2.4 BT.656 Data Sampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-83.2.5 BT.656 FIFO Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

3.3 Y/C Video Capture Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-123.3.1 Y/C Capture Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-123.3.2 Y/C Timing Reference Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-123.3.3 Y/C Image Window and Capture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-133.3.4 Y/C FIFO Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

3.4 BT.656 and Y/C Mode Field and Frame Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-173.4.1 Capture Determination and Notification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-173.4.2 Vertical Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-193.4.3 Horizontal Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-223.4.4 Field Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-243.4.5 Short and Long Field Detect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

3.5 Video Input Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-263.5.1 Input Filter Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-263.5.2 Chrominance Resampling Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-273.5.3 Scaling Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-273.5.4 Edge Pixel Replication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

3.6 Ancillary Data Capture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-313.6.1 Horizontal Ancillary (HANC) Data Capture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-313.6.2 Vertical Ancillary (VANC) Data Capture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31

3.7 Raw Data Capture Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-323.7.1 Raw Data Capture Notification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-323.7.2 Raw Data FIFO Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33

vi

SPRU629

Page 5 Page 7
Page 6
Image 6
Texas Instruments TMS320C64x DSP manual Discusses operation of the video capture port, Video Capture Port
Page 5 Page 7

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.