ADV7183ABST datasheet(19/104 Pages) AD

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ADV7183A

Rev. A | Page 19 of 104

GLOBAL STATUS REGISTERS

There are four registers that provide summary information

about the video decoder. The IDENT register allows the user to

identify the revision code of the ADV7183A. The other three

registers contain status bits from the SDP.

IDENTIFICATION

IDENT[7:0] Address 0x11, [7:0]

Provides identification of the revision of the ADV7183A. Please

review the list of IDENT code readback values for the various

versions shown in Table 25.

Table 25. IDENT Function

IDENT[7:0]

Description

0x0D

ADV7183A-ES1

0x0E

ADV7183A-ES2

0x0F or 0x10

ADV7183A-FT

0x11

ADV7183A (Version 2)

STATUS 1

STATUS_1[7:0] Address 0x10, [7:0]

This read-only register provides information about the internal

status of the ADV7183A.

Please see CIL[2:0] Count Into Lock (SDP), Address 0x51, [2:0]

and COL[2:0] Count Out of Lock (SDP), Address 0x51, [5:3] for

information on the timing.

Depending on the setting of the FSCLE bit, the Status[0] and

Status[1] are based solely on horizontal timing info or on the

horizontal timing and lock status of the color subcarrier. See the

FSCLE Fsc Lock Enable (SDP), Address 0x51, [7] section.

SDP Autodetection Result

AD_RESULT[2:0] Address 0x10, [6:4]

The AD_RESULT[2:0] bits report back on the findings from the

SDP autodetection block. Consult the SDP General Setup sec-

tion for more information on enabling the autodetection block,

and the Autodetection of SDP Modes section to find out how to

configure it.

Table 26. AD_RESULT Function

AD_RESULT[2:0]

Description

000

NTSM-MJ

001

NTSC-443

010

PAL-M

011

PAL-60

100

PAL-BGHID

101

SECAM

110

PAL-Combination N

111

SECAM 525

Table 27. STATUS 1 Function

STATUS 1 [7:0]

Bit Name

Block

Description

IN_LOCK

SDP

In lock (right now).

LOST_LOCK

SDP

Lost lock (since last read of this register).

FSC_LOCK

SDP

Fsc locked (right now).

FOLLOW_PW

SDP

AGC follows peak white algorithm.

AD_RESULT.0

SDP

Result of SDP autodetection.

AD_RESULT.1

SDP

Result of SDP autodetection.

AD_RESULT.2

SDP

Result of SDP autodetection.

COL_KILL

SDP

Color kill active.

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