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Flat Panel Display Link, more commonly referred to as FPD-Link, is the original high-speed digital video interface created in 1996 by National Semiconductor (now within Texas Instruments). It is a free and open standard for connecting the output from a graphics processing unit in a laptop , tablet computer , flat panel display , or LCD ...
DisplayPort (DP) was designed to replace VGA, DVI, and FPD-Link and standardized by VESA. [2] It is primarily used to connect a video source to a display device such as a computer monitor. It can also carry audio, USB, and other forms of data.
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.
OpenLDI is based on the FPD-Link specification, which was the de facto standard for transferring graphics and video data through notebook computer hinges since the late 1990s. Both OpenLDI and FPD-Link use low-voltage differential signaling (LVDS) as the physical layer signaling, and the three terms have mistakenly been used synonymously. (FPD ...
Current mode logic (CML), or source-coupled logic (SCL), is a digital design style used both for logic gates and for board-level digital signaling of digital data.. The basic principle of CML is that current from a constant current generator is steered between two alternate paths depending on whether a logic zero or logic one is being represented.
Furthermore, since FPD-Link mainly uses electrical digital signaling between zero volts (the ground level) and 1.2 volts based on its standard, it became a significant constraint of designing higher density LSIs. Under such circumstances, many substitutable interfaces such as DVI, HDMI, DisplayPort, and V-by-One HS are offered and adopted widely.
Serial FPDP also recommends the use of one of the following link widths: [2] x1; x4; x8; x12 (5 Gbit/s and up) x24 (5 Gbit/s and up) x48 (10 Gbit/s and up) Serial FPDP can operate over long distances, up to 10 kilometres (6.2 mi), using optical fiber cables, or shorter distances over copper cables.
The front panel data port (FPDP) is a bus that provides high speed data transfer between two or more VMEbus boards at up to 160 Mbit/s with low latency. The FPDP bus uses a 32-bit parallel synchronous bus wired with an 80-conductor ribbon cable.