MB86296 Datasheet, PDF (89/352 Pages) Fujitsu Component Limited. – PCI Graphics Controller Specification

FUJITSU LIMITED PRELIMINARY AND CONFIDENTIAL
8.2.4 Window Display
The captured video picture is displayed using L1 layer. The whole or a part captured picture can be
displayed as the whole screen or a window.
When performing a capture display, L1 layer is set as capture synchronous mode (L1CS=1). In this
mode, L1 layer display displays the newest frame in a video capture buffer. Usually, the display
address used in the mode is disregarded.
The stride of L1 layer needs to be in agreement with the stride of a video capture buffer. When not
in agreement, the picture distorted aslant is displayed.
The display size of L1 layer is made in agreement with the picture size after reduction of a video
capture. Invalid data will be displayed if the display size of L1 layer is set up more greatly than
capture picture size.
Although selection of a RGB display and a YCbCr display can be performed in L1 layer, in
performing a video capture, it chooses YcbCr form (L1YC=1).
8.2.5 Interlace Display
It is possible to display the picture taken in to the video capture buffer in WEAVE mode in an
interlace. A setup confirms WEAVE mode and chooses an interlace & video display with display
scan.
However, when display scan is asynchronous, flicker will come out in a scene with a motion. In
order to prevent this, OO (Odd Only) bit of a CBM (Capture Buffer Mode) register is set as 1.
When synchronizing display scan with a capture, a capture input and a display output can be made
to correspond to 1 to 1. In this case, the difference of flicker of an input and an output is lost.
Please refer to "8.8 Capture synchronous display."
MB86296S <Coral-PA>
79
Specification Manual Rev0.1