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TMS320C64x DSP
Video Port/VCXO Interpolated Control (VIC) Port
Reference Guide
Literature Number: SPRU629
April 2003
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the t
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Preface Read This First About This Manual This document describes the video port and VCXO interpolated control (VIC) port in the digital signal processors (DSPs) of the TMS320C6000 DSP family. Notational Conventions This document uses the following conventions. Hexadecimal numbers are shown with the suffix h. For example, the following number is 40 hexadecimal (decimal 64): 40h. Related Documentation From Texas Instruments The following documents describe the C6000 devices and related suppor
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Trademarks Related Documentation From Texas Instruments / Trademarks Code Composer Studio Application Programming Interface Reference Guide (literature number SPRU321) describes the Code Composer Studio application programming interface (API), which allows you to program custom plug-ins for Code Composer. TMS320C6x Peripheral Support Library Programmer’s Reference (literature number SPRU273) describes the contents of the TMS320C6000 peripheral support library of functions and macros. It lists
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Contents Contents 1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Provides an overview of the video port peripheral in the digital signal processors (DSPs) of the TMS320C6000 DSP family. Included are an overview of the video port functions, FIFO configu- rations, and signal mapping. 1.1 Video Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Contents 2.6 Video Port Throughput and Latency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13 2.6.1 Video Capture Throughput . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13 2.6.2 Video Display Throughput . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15 2.7 Video Port Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Contents 3.8 TSI Capture Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37 3.8.1 TSI Capture Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37 3.8.2 TSI Data Capture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37 3.8.3 TSI Capture Error Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Contents 4 Video Display Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Discusses the video display port. 4.1 Video Display Mode Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 4.1.1 Image Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 4.1.2 Video Display Counters . . . . . .
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Contents 4.12.6 Video Display Field 1 Vertical Blanking End Register (VDVBLKE1) . . . . . . . . 4-64 4.12.7 Video Display Field 2 Vertical Blanking Start Register (VDVBLKS2) . . . . . . . 4-65 4.12.8 Video Display Field 2 Vertical Blanking End Register (VDVBLKE2) . . . . . . . . 4-67 4.12.9 Video Display Field 1 Image Offset Register (VDIMGOFF1) . . . . . . . . . . . . . . 4-68 4.12.10 Video Display Field 1 Image Size Register (VDIMGSZ1) . . . . . . . . . . . . . . . . 4-70 4.12.11 Video Display
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Contents 6 VCXO Interpolated Control Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 Provides an overview of the VCXO interpolated control (VIC) port. 6.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2 6.2 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Figures Figures 1–1 Video Port Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 1–2 BT.656 Video Capture FIFO Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 1–3 8/10-Bit Raw Video Capture and TSI Video Capture FIFO Configuration . . . . . . . . . . . . . . 1-7 1–4 Y/C Video Capture FIFO Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Figures 3–21 20-Bit Raw Data FIFO Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36 3–22 Parallel TSI Capture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38 3–23 Program Clock Reference (PCR) Header Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39 3–24 System Time Clock Counter Operation . . . . . . . . . . . . . . . . . . . . . . . . .
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Figures 4–17 10-Bit Y/C FIFO Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19 4–18 10-Bit Y/C Dense FIFO Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20 4–19 Chrominance Resampling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22 4–20 2x Co-Sited Scaling . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Figures 4–61 Video Display Clipping Register (VDCLIP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-85 4–62 Video Display Default Display Value Register (VDDEFVAL) . . . . . . . . . . . . . . . . . . . . . . . . 4-86 4–63 Video Display Default Display Value Register (VDDEFVAL)—Raw Data Mode . . . . . . . 4-87 4–64 Video Display Vertical Interrupt Register (VDVINT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-88 4–65 Video Display Field Bit Reg
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Tables Tables 1–1 Video Capture Signal Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13 1–2 Video Display Signal Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14 1–3 VDIN Data Bus Usage for Capture Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15 1–4 VDOUT Data Bus Usage for Display Modes . . . . . . . . . . . . . . . . . . . . . . .
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Tables 3–24 TSI Capture Control Register (TSICTL) Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . 3-73 3–25 TSI Clock Initialization LSB Register (TSICLKINITL) Field Descriptions . . . . . . . . . . . . . 3-74 3–26 TSI Clock Initialization MSB Register (TSICLKINITM) Field Descriptions . . . . . . . . . . . . 3-75 3–27 TSI System Time Clock LSB Register (TSISTCLKL) Field Descriptions . . . . . . . . . . . . . . 3-76 3–28 TSI System Time Clock MSB Register (TSISTCLKM) Field De
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Tables 4–26 Video Display Counter Reload Register (VDRELOAD) Field Descriptions . . . . . . . . . . . . 4-83 4–27 Video Display Display Event Register (VDDISPEVT) Field Descriptions . . . . . . . . . . . . . 4-84 4–28 Video Display Clipping Register (VDCLIP) Field Descriptions . . . . . . . . . . . . . . . . . . . . . . 4-85 4–29 Video Display Default Display Value Register (VDDEFVAL) Field Descriptions . . . . . . . 4-87 4–30 Video Display Vertical Interrupt Register (VDVINT) Field Descriptions
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Chapter 1 Overview This chapter provides an overview of the video port peripheral in the digital signal processors (DSPs) of the TMS320C6000 DSP family. Included are an overview of the video port functions, FIFO configurations, and signal mapping. Topic Page 1.1 Video Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.2 Video Port FIFO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
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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: Capture rate up to 80 MHz. 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. One channel of Y/C 16/20-bi
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Video Port TSI capture mode: Transport stream interface (TSI) from a front-end device such as demodulator or forward error correction device in 8-bit parallel format at up to 30 Mbytes/sec. The port generates up to three events per channel and one interrupt to the DSP. A high-level block diagram of the video port is shown in Figure 1–1. The port consists of two channels: A and B. A 5120-byte capture/display buffer is split- table between the two channels. The entire port (both channels) is a
