STV2310 datasheet(66/112 Pages) STMICROELECTRONICS

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STV2310

66/112

DDECCONTD

DDECCONTE

Address (hex): 0Dh

Reset Value (bin): 0011 0100

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

STI_NB_FIELDS_FALSE

[1:0]

STI_OK_ON

CE_OR_MO

DEM_CKILL_CTRL[1:0]

Bit Name

Function

Bit 7

Reserved: Must be set to 0.

STI_NB_FIELDS

_FALSE[1:0]

Number of Fields where Identification is lost before declaring Loss of Identification

The STI_NB_FIELDS_FALSE bits are related to the standard identification algorithm. These bits are

operational on all standards. They operate in the tracking phase when a standard has been recognized.

They determine the number of successive fields to reach when at least one of the criteria associated with

the standard is no longer met: the standard is then considered as lost.

00: 1 field10: 7 fields

01: 3 fields11: 15 fields

Bit 4

Reserved. Must be set to 1.

STI_OK_ONCE_

OR_MORE

Number of trials before standard is officially recognized

The STI_OK_ONCE_OR_MORE bit is related to the internal standard identification algorithm and provides

some flexibility in the standard identification. This bit is operational for all standards. As previously

described, up to 8 standards can be entered in the Automatic Standard Identification table. One (or more)

standard can be written more than once in that table (e.g. 4 times SECAM and 4 times PAL BGDHI). The

complete standard identification table is screened and tried before a decision can be made on identification

(one trial per table entry, succesful or not).

When a standard has been programmed more than once and when this bit is set, all trials for all entries of

that standard in the Automatic Standard Identification table must be successful before the standard is

declared identified.

When a standard has been programmed more than once and when this bit is reset, the standard is declared

identified when at least one trial was successful.

(Note that the information presented here only refers to the STI_OK_ONCE_OR_MORE bit. It does not

represent the entire standard identification algorithm.)

Bit 2

Reserved. Must be set to 1.

DEM_CKILL_

CTRL[1:0]

Color Kill Control

The Color Kill Control mode is operational for all TV standards. In Automatic mode, the color is killed until

the standard is identified.

00: Automatic (Default)10: Color always killed

01: Color never killed 11: Automatic (Same as 00) with Burst Amplitude control (see DDECCONT0F)

Address (hex): 0Eh

Reset Value (bin): 0010 0110

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

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