STV3550 Datasheet, PDF (2/144 Pages) STMicroelectronics – LCD and Matrix Display TV Processor

STV3550
Chapter 1
1.1
1.2
1.3
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Introduction .......................................................................................................................... 7
Software ............................................................................................................................... 8
Related Documentation ...................................................................................................... 10
1.3.1 General Introduction Manual ................................................................................................................10
1.3.2 User Guides ..........................................................................................................................................10
1.3.3 Reference Guide ..................................................................................................................................11
Chapter 2
2.1
2.2
2.3
STV3550 Pin List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Pinout ................................................................................................................................ 12
Pin Description .............................................................................................................. 13
Parallel I/O Pins and Alternate Functions .......................................................................... 19
Chapter 3
3.1
3.2
3.3
Video Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Standard Definition Input (SDIN) ........................................................................................ 20
3.1.1 System Description ...............................................................................................................................20
Video Timebase Generator (VTG) ..................................................................................... 22
3.2.1 Synchronization Modes ........................................................................................................................22
3.2.2 Deinterlacing Modes and Progressive Scan Output .............................................................................22
3.2.3 Regulation Modes .................................................................................................................................23
Video Display Pipeline ....................................................................................................... 24
3.3.1 Main Features .......................................................................................................................................25
3.3.2 Horizontal and Vertical Rescaling ........................................................................................................25
3.3.3 Image Improvement ..............................................................................................................................27
3.3.4 Brightness Estimator ............................................................................................................................28
3.3.5 Histogram .............................................................................................................................................28
3.3.6 Contrast Enhancer ................................................................................................................................28
3.3.7 Spectral Processing ..............................................................................................................................35
3.3.8 Color Transient Improvement ...............................................................................................................36
Chapter 4
4.1
4.2
4.3
4.4
Graphics Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
On-Screen Display Generator (OSD) ................................................................................. 37
4.1.1 General Information ..............................................................................................................................37
4.1.2 Main Features .......................................................................................................................................37
4.1.3 Functional Description ..........................................................................................................................37
4.1.4 Programming OSD Display Regions ....................................................................................................38
4.1.5 Mixing OSD and Video Signals .............................................................................................................48
2D Graphics Accelerator .................................................................................................... 49
Graphic Application Examples ........................................................................................... 50
4.3.1 Teletext 1.5 ...........................................................................................................................................50
4.3.2 Teletext Level 2.5 ..................................................................................................................................51
4.3.3 TeleWeb ................................................................................................................................................51
Picture Compositor ............................................................................................................. 53
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