STV2050A datasheet(33/83 Pages) STMICROELECTRONICS

Il numero della parte	STV2050A

Spiegazioni elettronici	AUTOMATIC MULTISCAN DIGITAL CONVERGENCE PROCESSOR

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

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STV2050A - VIDEO PATTERN GENERATOR

Figure 15. Auto-alignment Pattern

Note: It is not possible to display both cursors simultaneously as shown.

7.1 GENERAL FUNCTIONS

7.1.1 Pattern Selection

The color components (RGB) for the video pattern can be separately switched on and off by

the COV[2:0] bits in the EA register. If the control bit for one color is set to 0, the corresponding

DAC output is switched to 0V.

The type of the pattern is selected by the PAS[4:0] bits in the EA register.

COV[2]

0: Red = Off

1: Red = On

COV[1]

0: Green = Off

1: Green = On

COV[0]

0: Blue = Off

1: Blue = On

PAS[4]

0: Auto-alignment Pattern Off

1: Auto-alignment Pattern On

PAS[3]

0: Small Cursor

1: Large Cursor

PAS[2]

0: Cursor Off

1: Cursor On

SMALL

CURSOR

LARGE

CURSOR

VISIB LE

SCREEN

BORDER

LINES

Progammab le for H

zoom effect

First t wo grids on ly

Prog rammable

d istance

Auto-ali gn ment

pattern

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