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Ixiasoft
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Ixiasoft
1.1. DisplayPort Terms and Acronyms
Acronym | Description |
---|---|
API | Application Programming Interface |
AUX | Auxiliary |
bpc | Bits per Component |
bpp | Bits per Pixel |
BE | Blanking End |
BS | Blanking Start |
DP | DisplayPort |
DP1.4 | DisplayPort version 1.4 in 8B/10B encoding scheme that supports up to HBR3 |
DP2.0 | DisplayPort version 2.0 in 128B/132B encoding scheme that supports up to UHBR20 |
DPCD | DisplayPort Configuration Data |
eDP | Embedded DisplayPort |
EDID | Enhanced Display Identification Data |
GPU | Graphics Processor Unit |
HBR | High Bit Rate (2.7 Gbps per lane) |
HBR2 | High Bit Rate 2 (5.4 Gbps per lane) |
HBR3 | High Bit Rate 3 (8.1 Gbps per lane) |
UHBR10 | Ultra High Bit Rate 10 (10.0 Gbps per lane) |
UHBR13.5 | Ultra High Bit Rate 13.5 (13.5 Gbps per lane) |
UHBR20 | Ultra High Bit Rate 20.0 (20.0 Gbps per lane) |
HPD | Hot Plug Detect |
MST | Multi-Stream Transport |
Maud | M value for audio in DP1.4 |
Mvid | M value for video in DP1.4 |
Naud | N value for audio in DP1.4 |
Nvid | N value for video in DP1.4 |
VFreq | Video frequency in DP2.0 |
AFreq | Audio frequency in DP2.0 |
RBR | Reduced Bit Rate (1.62 Gbps per lane) |
RGB | Red Green Blue |
RX | Receiver |
SDP | Secondary-Data Packet |
SE | SDP End |
SR | Scrambler Reset |
SS | SDP Start |
SST | Single-Stream Transport |
TX | Transmitter |
Term | Definition |
---|---|
Link Symbol Clock (LSym_Clk) | Link Symbol clock frequency (f_LSym_Clk) across link rate: -
Note: LSym_Clk is equivalent to LS_Clk in VESA DisplayPort Standard version 2.0.
|
Link Speed Clock (ls_clk) | Transceiver recovered clock out. Link Speed clock frequency equals: f_LSym_Clk / SYMBOLS_PER_CLOCK. |
Stream Clock or Pixel Clock (Strm_Clk) | Used for transferring stream data into a DisplayPort transmitter within a DisplayPort Source device or from a DisplayPort receiver within a DP Sink device. Video and audio (optional) are likely to have separate stream clocks. Stream clock frequency (f_Strm_Clk) represent the pixel rate. For example, f_Strm_Clk for 1080p60 (CEA-861-F VIC16) is 148.5 MHz. |
Video Clock (vid_clk) | Video clock frequency equals: f_Strm_Clk / PIXELS_PER_CLOCK |
8B/10B Channel Coding | Channel Coding specification as specified in ANSI INCITS 230. Used at DP1.4 link rates. |
128B/132B Channel Coding | New channel coding added in DP v2.0 for improving the channel-coding efficiency from 80% of 8B/10B channel coding to 97%. |