LMH0031 Datasheet, PDF(22/39 Page) National Semiconductor (TI) – SMPTE 292M/259M Digital Video Deserializer Descrambler with Video and Ancillary Data FIFOs

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LMH0031 Datasheet, PDF (22/39 Pages) National Semiconductor (TI) – SMPTE 292M/259M Digital Video Deserializer Descrambler with Video and Ancillary Data FIFOs

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LMH0031

SNLS218A â JANUARY 2006 â REVISED APRIL 2013

Table 3. Control Register Addresses

EDH 0

EDH 1

EDH 2

ANC 0

ANC 1

ANC 2

ANC 3

ANC 4

ANC 5

ANC 6

FORMAT 0

FORMAT 1

TEST 0

VIDEO INFO 0

I/O PIN 0 CONFIG

I/O PIN 1 CONFIG

I/O PIN 2 CONFIG

I/O PIN 3 CONFIG

I/O PIN 4 CONFIG

I/O PIN 5 CONFIG

I/O PIN 6 CONFIG

I/O PIN 7 CONFIG

VIDEO CONTROL 0

VIDEO CONTROL 1

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Address

Hexadecimal

EDH 0 (register 01h)

The EDH Full-Field flags F/F UES, F/F IDA, F/F IDH, F/F EDA andF/F EDH are defined in SMPTE RP 165. The

flags are updated automatically when the EDH function is enabled and data is being received.

The EDH ENABLE bit, when set, enables operation of the EDH generator function during SD operation. The

default condition of this bit is set (ON).

The EDH FORCE bit, when set, causes updated EDH packets to be inserted in the parallel output data

regardless of the previous condition of EDH checkwords and flags in the input serial data. This function may be

used in situations where video content has been edited thus making the previous EDH information invalid. The

default condition of this bit is reset (OFF).

The CRC ERROR bit indicates that errors in either the EDH checksums (SD) or CRC checkwords (HD) were

detected in the serial input data. This bit is a combined function which indicates the presence of either EDH

errors during SD operation or CRC errors during HD operation.

EDH 1 (register 02h)

The EDH Active Picture flags A/P UES, A/P IDA, A/P IDH, A/P EDA andA/P EDH are defined in SMPTE RP

165. The flags are updated automatically when the EDH function is enabled and data is being received.

Specific types of CRC errors in incoming HD serial data are reported in the CRC ERROR LUMA and CRC

ERROR CHROMA bits.

The CRC REPLACE bit, when set, causes the CRCs in the incoming data to be replaced with CRCs calculated

by the LMH0031. The bit is normally reset (OFF).

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