Datasheet

TVP5151

www.ti.com

SLES241E–SEPTEMBER 2009– REVISED OCTOBER 2011

3.21.60 Teletext Filter Control Register

Address BBh

Default 00h

7 6 5 4 3 2 1 0

Reserved Filter logic Mode TTX filter 2 TTX filter 1

enable enable

Filter logic allows different logic to be applied when combining the decision of filter 1 and filter 2 as follows:

00 = NOR (Default)

01 = NAND

10 = OR

11 = AND

Mode

0 = Teletext WST PAL mode B (2 header bytes) (default)

1 = Teletext NABTS NTSC mode C (5 header bytes)

TTX filter 2 enable

0 = Disabled (default)

1 = Enabled

TTX filter 1 enable

0 = Disabled (default)

1 = Enabled

If the filter matches or if the filter mask is all zeros, a true result is returned.

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