Video Port/VCXO Interpolated Control (VIC) Port User's Guide

Contents
Preface .............................................................................................................................. 13
1 Overview ................................................................................................................. 16
1.1 Video Port ................................................................................................................ 17
1.2 Video Port FIFO ......................................................................................................... 19
1.2.1 EDMA Interface ................................................................................................. 19
1.2.2 Video Capture FIFO Configurations .......................................................................... 20
1.2.3 Video Display FIFO Configurations .......................................................................... 23
1.3 Video Port Registers .................................................................................................. 25
1.4 Video Port Pin Mapping .............................................................................................. 26
1.4.1 VDIN Bus Usage for Capture Modes ........................................................................ 27
1.4.2 VDOUT Data Bus Usage for Display Modes ................................................................ 28
1.5 Video Port Pin Multiplexing ........................................................................................ 28
1.6 VideoPort Clocking .................................................................................................... 28
2 Video Port ............................................................................................................... 29
2.1 Reset Operation ........................................................................................................ 30
2.1.1 Power-On Reset ................................................................................................ 30
2.1.2 Peripheral Bus Reset .......................................................................................... 30
2.1.3 Software Port Reset ............................................................................................ 30
2.1.4 Capture Channel Reset ........................................................................................ 31
2.1.5 Display Channel Reset......................................................................................... 31
2.2 Interrupt Operation .................................................................................................... 31
2.3 EDMA Operation ........................................................................................................ 32
2.3.1 Capture EDMA Event Generation ............................................................................ 32
2.3.2 Display EDMA Event Generation ............................................................................. 33
2.3.3 EDMA Size and Threshold Restrictions ..................................................................... 33
2.3.4 EDMA Interface Operation .................................................................................... 34
2.4 Video Port Control Registers ...................................................................................... 34
2.4.1 Video Port Control Register (VPCTL) ........................................................................ 35
2.4.2 Video Port Status Register (VPSTAT) ....................................................................... 37
2.4.3 Video Port Interrupt Enable Register (VPIE) ................................................................ 38
2.4.4 Video Port Interrupt Status Register (VPIS) ................................................................ 40
3 Video Capture Port ................................................................................................... 45
3.1 Video Capture Mode Selection .................................................................................... 46
3.2 BT.656 Video Capture Mode ........................................................................................ 46
3.2.1 BT.656 Capture Channels ..................................................................................... 46
3.2.2 BT.656 Timing Reference Codes ............................................................................. 46
3.2.3 BT.656 Image Window and Capture ......................................................................... 48
3.2.4 BT.656 Data Sampling ......................................................................................... 49
3.2.5 BT.656 FIFO Packing .......................................................................................... 49
3.3 Y/C Video Capture Mode ............................................................................................ 50
3.3.1 Y/C Capture Channels ......................................................................................... 50
3.3.2 Y/C Timing Reference Codes ................................................................................. 50
SPRUEM1 – May 2007 Table of Contents 3
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