GS3470 datasheet(36/169 Pages) SEMTECH

36 / 169 page

GS3470

Final Data Sheet

Rev.8

PDS-060500

September 2017

36 of 169

Semtech

www.semtech.com

4.12 H:V:F Timing Signal Extraction

The GS3470 extracts critical timing parameters from the received TRS words.

Horizontal blanking (H), Vertical blanking (V), and Field odd/even (F) timing are output

on the STAT[2:0] pins by default.

The H signal timing can be selected through GSPI using the H_CONFIG parameter. By

default, the H signal timing is set to active line blanking. This can be changed to TRS

based blanking by setting the H_CONFIG parameter to 1.

The timing of these signals is shown in Figure 4-8 through Figure 4-13.

Note: Both 8-bit and 10-bit TRS words are identified by the device.

Figure 4-8: H:V:F Output Timing - 3G Level A and HD 20-bit Mode

Figure 4-9: H:V:F Output Timing - 3G Level A and HD 10-bit Mode

Figure 4-10: H:V:F Output Timing - 3G Level B 10-bit Mode

PCLK

LUMA DATA

CHROMA DATA

000

3FF

000

3FF

XYZ (SAV)

000

3FF

000

3FF

XYZ (SAV)

XYZ (EAV)

000

3FF

000

PCLK (HD)

MULTIPLEXED Y’CbCr DATA (HD)

MULTIPLEXED DS1/DS2 DATA (3G)

PCLK (3G DDR)

000

3FF

000

XYZ (EAV)

MULTIPLEXED Y’CbCr DATA (HD)

MULTIPLEXED DS1/DS2 DATA (3G)

PCLK (HD)

PCLK (3G DDR)

H S I GN A L T IM IN G :

H _ C O N F IG = LO W

H _C O N F IG = H I G H

HVF T IM IN GAT SAV

HVF T IM IN GAT EAV

XYZ (EAV)

XYZ (SAV)

3FF

PCLK (DDR)

MULTIPLEXED LINKA/LINKB DATA

3FF

3FF 3FF

000

XYZ

(sav )

XYZ

(sav )

XYZ

(sav )

XYZ

(sav )

MULTIPLEXED LINKA/LINKB DATA

PCLK (DDR)

3FF

000

XYZ

(eav)

XYZ

(eav )

XYZ

(eav )

XYZ

(eav )

3FF

H S I GN A L T IM IN G :

H_ C O NF IG = L O W

H _ C ONF IG = H I GH

HVF T IM IN GAT EAV

HVF T IM IN GAT SAV

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