External Video Signal Input Conditions; Rtb656 Yuv422 Input Format - Fujitsu MB86R02 Jade-D Hardware Manual

Graphics controller

Hide thumbs Also See for MB86R02 Jade-D:

Table of Contents

MB86R02 'Jade-D' Hardware Manual V1.64

18.7.5 External video signal input conditions

The ITU R.BT-656 format is widely used for the digital transmission of NTSC and PAL signals. The

format corresponds to YUV422. Interlaced video display signals can be captured and displayed in

non-interlaced mode using linear interpolation.

If the VIE (Video Input Enable) bit of the video capture mode register (VCM) is 1, the capture controller

can capture video stream data from the 8 VINx_x pins in synchronization with the CCLK clock. In this

mode, only a digital video stream that conforms to the ITU-RBT656 standard can be processed. For

this reason, a Y,Cb,Cr 4:2:2 format is used to which timing reference codes are added. The video

stream is captured according to the timing reference codes; The capture controller automatically

supports both NTSC and PAL. However, in order to detect error codes, use the VS (Video Select) bit

data count in the capture data count register (CDCN). If PAL is set, specify the data count in the

capture data counter register (CDCP). If the data count does not match the data stream, then bits 4 to

bit 0 of the video capture status register (VCS) will contain values other than '0000'.

(1) RTB656 input format VI[7:0]

Sync code and image data (Cb,Y,Cr,Y) are input as multiples of 8 data bits in sync with a 27MHz

clock and valid pixel data is being transmitted if it is located between a SAV or EAV sync code.

SAV : Sync code for Start of Active Video data (4 Bytes)

EAV : Sync code for End of Active Video data (4 Bytes)

[ ] : 625/50 series (PAL)

... 80 10 FF 00 00 SAV Cb0 Y0 Cr0 Y1 Cb2 Y2 ... Cr718 Y719 FF 00 00 EAV 80 10 ...

Blanking data

80,10,80,10,80,.

ACTIVE-VIDEO -LINE

720 PIXELS YUV4:2:2 DATA

Multiplexed video data

Cb,Y,Cr,Y,Cb,Y,Cr,Y,.....

ACTIVE-VIDEO

1440T [1440T]