MB86294 Datasheet, PDF (70/305 Pages) Fujitsu Component Limited. – Grraphiics Controller specifications

FUJITSU LIMITED
PRELIMINARY and CONFIDENTIAL
7 Video Capture
7.1 F o r m a t
7.1.1 Input Data Format
Input a digital video stream in the ITU RBT-656 format. NTSC and PAL signals are both supported.
7.1.2 Video Signal Capture
When the VIE bit of the video capture mode register (VCM) is 1, Coral is enabled to capture video stream
data from the 8-bit VI pin in synchronization with the CCLK clock. Only a digital video stream conforming
to ITU -RBT656 can be processed. For this reason, a Y,Cb,Cr 4:2:2 format to which timing reference
codes are added is used. The video stream is captured according to the timing reference codes; Coral
automatically supports both NTSC and PAL. However, to detect error codes, set NTSC/PAL in the VS bit
of VCM. If NTSC is not set, reference the number of data in the capture data count register (CDCN). If
PAL is not set, reference the number of data in the capture data counter register (CDCP). If the
reference data does not match the stream data, bit 4 to bit 0 of the video capture status register (VCS) will
be values other than 0000.
7.1.3 Non-interlace Transformation
Captured video graphics can be displayed in non-interlaced format. Two modes (BOB and WEAVE) can
be selected at non-interlace transformation.
- BOB Mode
In odd fields, the even-field rasters generated by average interpolation are added to produce one frame.
In even fields, the odd-field rasters generated by average interpolation are added to produce one frame.
The BOB mode is selected by enabling vertical interpolation with the VI bit of the video capture mode
register (VCM) and setting the L1IM bit of the L1-layer mode register (L1M) to 0.
- WEAVE Mode
Odd and even fields are merged in the video capture buffer to produce one frame. Vertical resolutions in
the WEAVE mode are higher than those in the BOB mode but raster dislocation appears at moving
places.
The WEAVE mode is selected by disabling vertical interpolation with the VI bit of VCM and setting the
L1IM bit of L1-layer mode register(L1M) to 1.
MB86294/294S CORAL_LB
Graphics Controller
70
Specifications Rev. 1.0