Preliminary Data Sheet
INDT/R166B
INDT/R331B
Date: 2005-03-14 Revision: 0.1
Page 3 of 40
1 General Description
The GigaSTaR Digital Display Link is a high-speed serial and long distance link for video, audio and digital data, which
supports the popular VESA and Digital TV standards as well as proprietary video formats from VGA to UXGA with color
depth up to 24 bits.
1.1 Link Interface
The INDT/R166B link requires one single twisted pair cable for the high-speed downlink. The INDT/R331B provides double
bandwidth by using two twisted pairs. Both devices offer an uplink connection using a twisted pair. The downlink must be
established before the uplink can be activated.
Figure 1.1: GigaSTaR Digital Display Link Interfaces
The transmitter’s and receiver’s generic parallel RGB interfaces (CMOS/TTL compatible) support direct connection to the
parallel data port of any graphic controller or to any flat panel display with a parallel pixel data port. The bit width of the
pixel data path can be scaled to support the 18- or 24-bit mode with 1 pixel/clock, the 36- or 48-bit mode with 2 pixel/clock.
Pixel data can be clocked into the transmitter on the rising, falling or on both edges (18-, 24-bit mode) of the pixel clock.
Pixel data are provided at the receiver on the rising, falling or on both edges (18-, 24-bit mode) of the pixel clock.
1.1.1 Link Interface Bandwidth
The bandwidth of the downlink is shared between video, audio and sideband data. Disabling audio and/or sideband
channels, even partially, increases the available bandwidth for the video data. The video configuration required for VESA
or Digital TV (DTV) / High-Definition TV (HDTV) standard compatible video resolutions is shown in Table 1.1 and Table
1.2.
INDT/R166B configurations
Mode
High-speed
Sideband
Low-speed
Sideband
Audio
Up to
VESA-/DTV-Mode
1
XX
X/–
XGA 18 color bits
2
–
X
X
XGA 18 color bits
3
–
–
–
XGA 24 color bits
4
X
X
X
480p(60fps), 720p (30fps)
Table 1.1: INDT/R166B Video Configuration
AUDIO
VIDEO
SIDEBAND
DATA
VIDEO
SIDEBAND
DATA
AUDIO
M
U
X
D
E
M
U
X
Only INDT/R330
Downlink
Uplink
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