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Schematic of a TMDS link used as a link for digital component video data (RGB) between a video controller (PC) and a display controller (Monitor) in interfaces such as DVI or HDMI Transition-minimized differential signaling ( TMDS ) is a technology for transmitting high-speed serial data used by the DVI [ 1 ] and HDMI video interfaces, as well ...
P&D combined analog and digital video with data over USB and FireWire to reduce cable clutter, but the feature creep resulted in an unpopular, expensive connector. [2]: 4 Compaq described DFP as a "transition" step between the analog VGA connector and P&D: DFP was designed by a consortium including Compaq, Hewlett-Packard, and ATI Technologies as a smaller, simpler connector, dropping support ...
DVI provide one TMDS clock pair and 3 TMDS data pairs in single link mode or 6 TMDS data pairs in dual link mode. TMDS data pairs operate at a gross bit rate that is 10 times the frequency of the TMDS clock. In each TMDS clock period there is a 10-bit symbol per TMDS data pair representing 8-bits of pixel color.
There are "display controllers" on both sides: the transmitting one and the receiving one. In case TMDS is used, they both contain a unit to do the transformation of the data into the TMDS-specified signal, and back. 19:09, 19 February 2015: 830 × 310 (21 KB) Wdwd
TMDS Data2 return 4 Horizontal & Vertical sync return Not used 5 Horizontal sync / Composite sync Not used 6 Vertical sync Not used 7 TMDS Clock return 8 General purpose, fourth make Charge power + 9 General purpose, third make 1394 pair A, data - 10 1394 pair A, data + 11 TMDS Data1 + 12 TMDS Data1 - 13 TMDS Data1 return 14 TMDS Clock + 15
The original FPD-Link designed for 18-bit RGB video has 3 parallel data pairs and a clock pair, so this is a parallel communication scheme. However, each of the 3 pairs transfers 7 serialized bits during each clock cycle. So the FPD-Link parallel pairs are carrying serialized data, but use a parallel clock to recover and synchronize the data.
The MHL TMDS data lane (purple & green) uses the differential pair present in both USB 2.0 (Data− & Data+) and HDMI (TMDS Data0− & Data0+). The MHL Control Bus repurposes the USB On-The-Go ID (pin 4), and the HDMI Hot Plug Detect (pin 19), while the pins for power & ground match their original assignment for both.
DMS-59 (Dual Monitor Solution, 59 pins) is generally used for computer video cards. It provides two Digital Visual Interface (DVI) or Video Graphics Array (VGA) outputs in a single connector. A Y-style breakout cable is needed for the transition from the DMS-59 output (digital + analogue) to DVI (digital) or VGA (analogue), and different types ...