ADV7180WBSTZ datasheet(49/120 Pages) AD

49 / 120 page

Data Sheet

ADV7180

Rev. G | Page 49 of 120

ADVANCE BEGIN OF

VSYNC BY NVBEG[4:0]

DELAY BEGIN OF

VSYNC BY NVBEG[4:0]

VSYNC BEGIN

NVBEGSIGN

ODD FIELD?

YES

NVBEGDELO

VSBHO

ADDITIONAL

DELAY BY

1 LINE

ADVANCE BY

0.5 LINE

NVBEGDELE

VSBHE

ADDITIONAL

DELAY BY

1 LINE

ADVANCE BY

0.5 LINE

NOT VALID FOR USER

PROGRAMMING

Figure 38. NTSC VSYNC Begin

NVBEGDELO, NTSC VSYNC Begin Delay on Odd Field,

Address 0xE5[7]

When NVBEGDELO is 0 (default), there is no delay.

Setting NVBEGDELO to 1 delays VSYNC going high on an odd

field by a line relative to NVBEG.

NVBEGDELE, NTSC VSYNC Begin Delay on Even Field,

Address 0xE5[6]

When NVBEGDELE is 0 (default), there is no delay.

Setting NVBEGDELE to 1 delays VSYNC going high on an

even field by a line relative to NVBEG.

NVBEGSIGN, NTSC VSYNC Begin Sign, Address 0xE5[5]

Setting NVBEGSIGN to 0 delays the start of VSYNC. Set for

user manual programming.

Setting NVBEGSIGN to 1 (default) advances the start of

VSYNC (not recommended for user programming).

NVBEG[4:0], NTSC VSYNC Begin, Address 0xE5[4:0]

The default value of NVBEG is 00101, indicating the NTSC

VSYNC begin position.

For all NTSC/PAL VSYNC timing controls, both the V bit in

the AV code and the VSYNC signal on the VS pin are modified.

ADVANCE END OF

VSYNC BY NVEND[4:0]

DELAY END OF VSYNC

BY NVEND[4:0]

VSYNC END

NVENDSIGN

ODD FIELD?

YES

NVENDDELO

VSEHO

ADDITIONAL

DELAY BY

1 LINE

ADVANCE BY

0.5 LINE

NVENDDELE

VSEHE

ADDITIONAL

DELAY BY

1 LINE

ADVANCE BY

0.5 LINE

NOT VALID FOR USER

PROGRAMMING

Figure 39. NTSC VSYNC End

NVENDDELO, NTSC VSYNC End Delay on Odd Field,

Address 0xE6[7]

When NVENDDELO is 0 (default), there is no delay.

Setting NVENDDELO to 1 delays VSYNC from going low on

an odd field by a line relative to NVEND.

NVENDDELE, NTSC VSYNC End Delay on Even Field,

Address 0xE6[6]

When NVENDDELE is set to 0 (default), there is no delay.

Setting NVENDDELE to 1 delays VSYNC from going low on an

even field by a line relative to NVEND.

NVENDSIGN, NTSC VSYNC End Sign, Address 0xE6[5]

Setting NVENDSIGN to 0 (default) delays the end of VSYNC.

Set for user manual programming.

Setting NVENDSIGN to 1 advances the end of VSYNC (not

recommended for user programming).

ADV7180WBSTZ Datasheet(PDF) 49 Page - Analog Devices

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