Introduction
ROBO-603 User’s Manual
1-13
1.4.10
Zoom Video Port
Lynx3DM's Zoom Video Port (ZV Port) is designed to interface with video solutions implemented
as PCMCIA (or PC CardBus) cards: examples are NTSC/PAL decoders, MPEG-2 decoders, and
JPEG Codecs. The ZV Port can also directly interface with an NTSC/PAL decoder, such as Philips
7111 or BT819.
Incoming video data from the ZV Port interface can be YUV or RGB format. The data can be
interlaced or non-interlaced. The ZV Port can be configured for output if the video capture function
is disabled. 18-bit graphics and video data in RGB format can be sent out when the ZV Port is
configured for output mode. The ZV Port may also be configured as a test port. Up to 20 signals
from each of the logic blocks within Lynx3DM can be brought out to an internal test bus (TD Bus)
connected to the ZV Port. System designers or silicon validation engineers can access these signals
by setting the TEST0, TEST1, USR0, USR1, and USR2 pins. This approach can bring out a total of
180 internal signals to the primary I/O pins. The test port capability can be used to enhance fault
coverage, as well as reduces silicon validation or debugging time.
The Video Capture Unit captures incoming video data from the ZV Port and then stores the data
into the frame buffer.
The Video Capture Unit support several features to maintain display quality, and balance the
capture rate:
2-tap, 3-tap, and 4-tap horizontal filtering
2 to 1 and 4 to 1 reduction for horizontal and vertical frame size
YUV 4:2:2, YUV 4:2:2 with byte swap, RGB 5:5:5, and RGB 5:6:5
Multiple frame skipping methods
Interlaced data and non-interlaced data capture
Single buffer and double buffer capture
Cropping
