Visual Circuits H-DVP Instrukcja Obsługi Strona 14
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Chapter 1: DVP Specifications
negligible in most applications. Digital video data on the DVP appears in the same frame
as video on the analog channels.
Physical Characteristics
DVP Cable Components
The DVP physical interface consists of a single, 100-conductor, 110-ohm cable organized
as 45 differential signal pairs. These signal pairs consist of the following:
• 36 RGB data pairs
• 2 clock pairs
• 5 pairs of timing signals (horizontal and vertical sync, composite blank (video
active), even/odd field, and VOC_SWAP)
• 2 pairs of Silicon Graphics-reserved signals
There are also 7 ground connections, a receiver power indicator, and 2 signals
implementing the I
2
C serial control channel. The DVP cable connects the digital video
stream from the InfiniteReality graphics system to a video peripheral board located
outside the Silicon Graphics logic cabinet in a customer-supplied chassis.
Maximum Cable Length
The maximum DVP cable length is 3 meters (about 10 feet). This length guarantees
operation at the maximum specified data rate for the DVP interface. (For applications
where the pixel clock rate is reduced, longer cable lengths may be possible but have not
been characterized at this time.)
Internal DVP Interface Characteristics for Onyx
The DVP external cable plugs into a connector assembly called the DVIO1, which is
located in the door of the Onyx
®
logic cabinet. A special flat internal cable connects the
DVIO1 to a daughterboard mounted on the DG4 video display board. The
daughterboard is called the DVP board. This card implements a user-programmable
- InfiniteReality 1
- Document Number 007-3594-001 4
- Contents 5
- List of Figures 7
- List of Tables 9
- About This Guide 11
- 1. DVP Specifications 13
- Physical Characteristics 14
- Connector Specification 15
- Signal Descriptions 16
- Timing Signals 17
- Chapter 1: DVP Specifications 18
- Electrical Considerations 19
- Suggested Receiver Design 20
- Site Preparation 22
- 16-Bit Luminance 23
- Video Format Programming 23
- Signal Lists 25
- Pin No. Pin Name 26
- Receiver Connector Signals 30
- Tell Us About This Manual 36
- Three Ways to Reach Us 36
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