GS1661 datasheet(61/84 Pages) SEMTECH

Part #	GS1661

Description	HD/SD SDI Receiver, with Integrated Adaptive Cable Equalizer complete with SMPTE Video Processing

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Manufacturer	SEMTECH [Semtech Corporation]

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61 / 84 page

GS1661 HD/SD SDI Receiver

Data Sheet

53751 - 3

September 2012

61 of 84

Figure 4-23: Ancillary Data Extraction - Step B

To read the new data, toggle the ANC_DATA_SWITCH bit LOW. The old data in Bank A

is cleared to zero and extraction continues in Bank B (see Figure 4-24: Ancillary Data

Extraction - Step C).

Figure 4-24: Ancillary Data Extraction - Step C

ANCDATA

0

1023

Application Layer

Read Pointer

Internal Write

Pointer

Bank A

ANC_DATA_SWITCH= HIGH

0

1023

Bank B

800h

BFFh

ANCDATA

0

1023

Application Layer

Read Pointer

Internal Write

Pointer

Bank A

ANC_DATA_SWITCH= LOW

0

1023

Bank B

800h

BFFh

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