To support high speed, M-PHY is generally transmitted using differential signaling over impedance controlled traces between components. When use on a single circuit card, the use of electrical termination may be optional. Options to extend its range could include operation over a short flexible flat cable, and M-PHY was designed to support optical media converters allowing extended distance between transmitters and receivers, and reducing concerns with electromagnetic interference.[15]
Applicationsedit
M-PHY (like its predecessor[dubious – discuss] D-PHY) is intended to be used in high-speed point-to-point communications, for example video Camera Serial Interfaces. The CSI-2 interface was based on D-PHY (or C-PHY), while the newer CSI-3 interface is based on M-PHY. M-PHY was designed to supplant D-PHY in many applications, but this is expected to take a number of years.
The M-PHY the physical layer is also used in a number of different high-speed emergent industry standards, DigRF (High speed radio interface), MIPI LLI (Low latency memory interconnect for multi-processors systems), and one possible physical layer for the UniPro protocol stack.
Signaling speed and gearsedit
M-PHY supports a scalable variety of signaling speeds, ranging from 10 kbit/s to over 11.6 Gbit/s per lane. This is accomplished using two different major signaling/speed modes, a simple low-speed (using PWM) mode and high speed (using 8b10b).[18] Communications goes on in bursts, and the design of both high-speed and low-speed forms allows for extended periods of idle communications at low-power, making the design particularly suitable for mobile devices.
Within each signaling method, a number of standard speeds, known as "gears", is defined, with the expectation that additional gears will be defined in future versions of the standard.[19]
Referencesedit
^"MIPI M-PHY takes center stage". EDN. Retrieved 2018-04-22.
high, speed, data, communications, physical, layer, protocol, standard, developed, mipi, alliance, working, group, targeted, needs, mobile, multimedia, devices, specification, details, proprietary, mipi, member, organizations, substantial, body, knowledge, ass. M PHY is a high speed data communications physical layer protocol standard developed by the MIPI Alliance PHY Working group and targeted at the needs of mobile multimedia devices 1 The specification s details are proprietary to MIPI member organizations but a substantial body of knowledge can be assembled from open sources A number of industry standard settings bodies have incorporated M PHY into their specifications including Mobile PCI Express 2 3 4 5 6 7 8 Universal Flash Storage 9 10 11 and as the physical layer for SuperSpeed InterChip USB 12 13 14 15 16 17 M PHYMIPI M PHYYear created2011Created byMIPI AllianceSupersedesD PHYWidth in bits1 4 lanes w adaptive discovery depending on higher level protocol Speedup to 11 6 Gbit s per data laneStyleserial embedded clockExternal interfaceyes with optical media converterWebsitehttps mipi org specifications m phy To support high speed M PHY is generally transmitted using differential signaling over impedance controlled traces between components When use on a single circuit card the use of electrical termination may be optional Options to extend its range could include operation over a short flexible flat cable and M PHY was designed to support optical media converters allowing extended distance between transmitters and receivers and reducing concerns with electromagnetic interference 15 Applications editM PHY like its predecessor dubious discuss D PHY is intended to be used in high speed point to point communications for example video Camera Serial Interfaces The CSI 2 interface was based on D PHY or C PHY while the newer CSI 3 interface is based on M PHY M PHY was designed to supplant D PHY in many applications but this is expected to take a number of years The M PHY the physical layer is also used in a number of different high speed emergent industry standards DigRF High speed radio interface MIPI LLI Low latency memory interconnect for multi processors systems and one possible physical layer for the UniPro protocol stack Signaling speed and gears editM PHY supports a scalable variety of signaling speeds ranging from 10 kbit s to over 11 6 Gbit s per lane This is accomplished using two different major signaling speed modes a simple low speed using PWM mode and high speed using 8b10b 18 Communications goes on in bursts and the design of both high speed and low speed forms allows for extended periods of idle communications at low power making the design particularly suitable for mobile devices Within each signaling method a number of standard speeds known as gears is defined with the expectation that additional gears will be defined in future versions of the standard 19 References edit MIPI M PHY takes center stage EDN Retrieved 2018 04 22 M PCIe Goin mobile EDN Retrieved 2018 04 22 PCIe Follows USB 3 0 to Mobile Applications PCI Express eecatalog com PCI SIG and MIPI Alliance Announce Mobile PCIe M PCIe Specification PCI Express eecatalog com PCIe for Mobile Launched PCIe 3 1 4 0 Specs Revealed 28 June 2013 Specifications PDF pcisig com Moving PCI Express to Mobile M PCIe Design And Reuse MindShare Mobile PCI Express M PCIe Training www mindshare com Universal Flash Storage UFS JEDEC www jedec org Universal Flash Storage Mobilize Your Data Design And Reuse UFS 3 0 standard released offers 2x faster performance than UFS 2 1 www fonearena com MIPI Alliance and USB 3 0 Promoter Group Announce Availability of SuperSpeed USB Inter Chip Edn com 2012 06 20 Retrieved 2018 04 22 MIPI M Phy Testing Services 29 May 2014 MIPI M PHY mipi org a b MIPI MPHY An introduction Design And Reuse MIPI M PHY takes center stage Design And Reuse Specifications eecatalog com MIPIAlliance 18 December 2012 MIPI M PHY Electrical Characterisation amp Challenges by Parthasarathy Raju Tektronix part 1 via YouTube MIPIAlliance 18 December 2012 MIPI M PHY Electrical Characterisation amp Challenges by Parthasarathy Raju Tektronix part 1 via YouTube nbsp This computer networking article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title M PHY amp oldid 1220812194, wikipedia, wiki, book, books, library,
