Protocol analysis
R&S
®
RTP
715User Manual 1337.9952.02 ─ 12
6. To start searching the acquired waveform for specific events, tap "Enable" in the
search setup dialog:
The R&S RTP displays the "Search Results" box that lists the detected events.
For information on how to configure the search results presentation and how to navi-
gate the search results, see also "To display search zoom windows" on page 470.
13.14 M-PHY and USB SSIC (option R&S RTP-K44 and K64)
The M-PHY
®
is a serial communication protocol. Its specifications were developed by
the Mobile Industry Processor Interface (MIPI) alliance as standards for the communi-
cation of high-speed components, like smartphones and tablets, within mobile devices.
For more details on the specifications, refer to http://mipi.org/specifications/physical-
layer#M-PHY Specification.
This protocol is the foundation for several upper layer protocols, such as UniPro
SM
(Unified Protocol), which manage complex data transfer functions. Each of these proto-
cols is optimized for its particular purpose, such as data storage, data transfer, display,
camera, memory sharing and radio interface.
When implemented together with the MIPI UniPro, defined as UniPort-M, they deliver
high speed, low power, scalable and flexible data transport solutions.
The super speed inter-chip (SSIC) was developed by the USB standards committee
based on USB3.1 G1 (SuperSpeed). It is developed to support the chip to chip com-
munication of USB3 components. The lower communication layers are using M-PHY
as the encoder platform and use a multilane distribution similar to UniPro. The higher
communication layers (above 8b/10b) are almost identical to USB3.1 G1.
● M-PHY basic......................................................................................................... 715
● M-PHY configuration.............................................................................................716
● M-PHY trigger....................................................................................................... 720
● M-PHY decode results.......................................................................................... 733
● Search on decoded M-PHY data.......................................................................... 734
13.14.1 M-PHY basic
This chapter provides an overview of the characteristics of the M-PHY and UniPro pro-
tocols.
13.14.1.1 Data transfer
M-PHY words are always 10 bits long (both data and control words). For UniPro, they
have variable lengths that depend on the frame type. For example, control words have
8 bits, data words have 16 bits and reserved words have 3 bits.
M-PHY and USB SSIC (option R&S
RTP-K44 and K64)
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