FUNCTIONAL DESCRIPTION (continued)

1.4.4 - Position Register

11

6

5

0

VERTICAL POSITION

HORIZONTAL POSIT ION

HORIZONTAL POSITION

Any value from 6 to 63

VERTICAL POSITION

Any value from 1 to 63

1.4.5 - Mode Register

11

10

9

87654321

0

M11

M10

M9

M8

M7

M6

M5

M4

M3

M2

M1

M0

M0 : M0 = 0

M0 = 1

:

:

the BAR pin is disabled

the BAR pin has an action on the line PLL

M1 : M1 = 0

M1 = 1

:

:

the missing sync pulses are not detected

the missing sync pulses are detected

M2 : M2 = 0

M2 = 1

:

:

the MUTE pin is forced to 0

the MUTE pin delivers the internal MUTE signal

M3 : M3 = 0

M3 = 1

:

:

the MUTE time constant is 8 lines

the MUTE time constant is 32 lines

M4 : M4 = 0

M4 = 1

:

:

the sync is not re-inserted

the sync is re-inserted for improved text stability

M5 : M5 = 0

M5 = 1

:

:

the gain of pins VIDEO OUT1 & VIDEO OUT2 is 0dB.

the gain of pins VIDEO OUT1 & VIDEO OUT2 is 6dB.

M6 : M6 = 0

M6 = 1

:

:

the color encoder is enabled (PAL or NTSC)

the color encoder is disabled (B&W or SECAM)

M7 : M7 = 0

M7 = 1

:

:

the VIDEO OUT2 pin outputs the VIDEO IN signal

the VIDEO OUT2 pin outputs the composite sync

M8 : M8 = 0

M8 = 1

:

:

the VIDEO OUT2 pin is in low impedance state

the VIDEO OUT2 pin is in high impedance state

M9 : M9 = 0

M9 = 1

:

:

Normal mode

CSYNC Pin outputs the burst gate, BAR Pin outputs the VSYNC (see Note)

M10 : M10 = 0

M10 = 1

:

:

No delay compensation

It enables the delay compensation of the internal sync extractor.

M11 : M11 = 0

M11 = 1

:

:

The mute signal output is synchronized on vertical sync in order to limit its transitions.

The mute signal is not synchronized on vertical sync thus accelerating the VIDEO IN

presence detection (useful in full page mode).

Note : This mode overides the normal functions of Pins CSYNC and BAR.

STV5730A

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