Datasheet

TVP5151

SLES241E–SEPTEMBER 2009–REVISED OCTOBER 2011

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3.21.23 Vertical Blanking Stop Register

Address 19h

Default 00h

7 6 5 4 3 2 1 0

Vertical blanking stop

Vertical blanking (VBLK) stop

0111 1111 = 127 lines after stop of vertical blanking interval

0000 0001 = 1 line after stop of vertical blanking interval

0000 0000 = Same time as stop of vertical blanking interval (default) (see Figure 3-5)

1111 1111 = 1 line before stop of vertical blanking interval

1000 0000 = 128 lines before stop of vertical blanking interval

Vertical blanking is adjustable with respect to the standard vertical blanking intervals. The setting in this

blank (see register 03h). The setting in this register also determines the duration of the luminance bypass

function (see register 07h).

3.21.24 Chrominance Control #1 Register

Address 1Ah

Default 0Ch

7 6 5 4 3 2 1 0

Reserved Color PLL reset Chrominance Chrominance Automatic color gain control

adaptive comb comb filter

filter enable enable (CE)

(ACE)

Color PLL reset

0 = Color PLL not reset (default)

1 = Color PLL reset

When a 1 is written to this bit, the color PLL phase is reset to zero and the subcarrier PLL phase reset

bit is transmitted on terminal 23 (GLCO) on the next line (NTSC or PAL).

Chrominance adaptive comb filter enable (ACE)

0 = Disable

1 = Enable (default)

Chrominance comb filter enable (CE)

0 = Disable

1 = Enable (default)

Automatic color gain control (ACGC)

00 = ACGC enabled (default)

01 = Reserved

10 = ACGC disabled

11 = ACGC frozen to the previously set value

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