HDMI
- Specification
- 1.4
- Released on May 28, 2009
- 1.4a
- 3D Portion of the HDMI Specification Version 1.4a
- Released on March 4, 2010
- TMDS(Transition Minimized Differential Signaling)
- DDC
- CEC(Consumer Electronics Control)
- HPD(Hot Plug Detect)
- CDC(Capability Discovery and Control)
- HEAC(HDMI Ethernet and Audio Return Channel)
- Connector
- Type A plug: the most common HDMI plug, 13.9 mm wide, 19 pins, designed with one set digital video TMDS lines (Single-Link)
- Cable
- Category 1 Standard cable without HEAC: the cable meets test spec with a max clock frequency of 74.25 MHz (or roughly 2 Gbps, or 720p and 1080i)
- Category 2 High Speed cable without HEAC: the cable meets test spec with a max clock frequency of 340 MHz (or roughly 8 Gbps, or 4k x 2k and 3D)
- Category 1 Standard cable with HEAC: the cable meets test spec with a max clock frequency of 74.25 MHz (or roughly 2 Gbps, or 720p and 1080i)
- Category 2 High Speed cable with HEAC: the cable meets test spec with a max clock frequency of 340 MHz (or roughly 8 Gbps, or 4k x 2k and 3D)
- Category 1 Standard automotive cable: the cable used in cars and trucks which meets the test spec with a max clock frequency of 74.25 MHz (or 2 Gbps, or 720p and 1080i)
- Transmitter
- Receiver sensitivity
- the capability to sense the receiver connectivity and working behavior
- detects the presence of the 50 W pull-up resistor RT on the TMDS clock channel of the downstream side
- This feature is very useful when the receiver recovers from an off-state and does not generate a HPD transition HIGH-to-LOW-to-HIGH. In this particular case, RxSense will generate an interrupt so that the chip restarts sending video
- Receiver
- PERICOM
page revision: 112, last edited: 08 Nov 2016 05:57