UFS Protocol Analyzer

Product Overview

Presentation

Application Notes

UFS Protocol Analyzer (PGY-UFS3.X-PA) is the Protocol Analyzer with multiple features to capture and debug communication between the host and design under test. PGY-UFS3.X-PA, UFS Protocol Analyzer, a value-based analyzer in its class, offers capture and debugging of data across MPHY, UniPro, and UFS protocol layers. It allows for instantaneous decoding of the UFS layer, UniPro layer, and MPHY layer with the flexibility to correlate decoded data across these protocol layers.

PGY-UFS3.X-PA Supports PWMG1 to HSG4B data rates and two TX, and two RX lane decode. The active probe has minimum electrical loading on the device under test (DUT) and captures protocol data without affecting the performance of the DUT. PGY-UFS3.X-PA protocol Analyzer can support two-lane data. Comprehensive decoding UniPro & UFS on the Fly enables validation of communication between host and device.

PGY-UFS3.X-PA, UFS Protocol Analyzer allows Design and Test Engineers to obtain deep insight into UFS host and device communication. MPHY/UniPro/UFS packet-based triggering allows specific protocol data capture and analysis. PGY-UFS3.X-PA Protocol analyzer instantaneously provides decoding of the UFS layer, UniPro layer, and MPHY layer with a correlation to MPHY, UniPro, and UFS layer.

Key features

  • Supports version MPHY 4.0, UniPro 1.8, and UFS version 2.1/3.1
  • Supports PWM G1 to G7 and HS G1, 2, 3, 4 A and B Series · Supports one/two data lanes (2 TX and 2 RX)
  • Flexibility to capture very large data using continuous streaming of Protocol data to host computer
  • Hardware-based circular buffer
  • Flexibility to decode selected data from an 8GB buffer
  • Solder down active probe provides high signal fidelity
  • Decoding at MPHY, UniPro, and UFS layer
  • Trigger-based on MPHY, UniPro, and UFS layer packet content
  • Supports triggering in PWM and HS data rate speeds
  • Trigger out a signal at the trigger event allows the triggering of other instruments such as an oscilloscope
  • Interface to host system using USB 3.0 or Gigabit Ethernet Interface
  • Flexibility to upgrade the hardware firmware using the GbE interface provides easy field up-gradation of FPGA firmware
  • Decoded data packets can be exported to a text file for further analysis
  • PGY-UFS 3.0-PA Protocol Analyzer is lightweight and can be deployed for on-site/ field tests

Test Setup

PGY-UFS3.X-PA UFS Protocol Analyzer provides USB 3.0 and Gbe interface for host computer connectivity. High-speed host connectivity enables continuous streaming of protocol data to host HDD and storage for a long period. The software offers multi-view such as MPHY view, UniPro view, and UFS View. Each view lists the respective protocol packets and their details with a correlation of each layer for easy debugging. The lightweight Analyzer is easy to carry during field visits.

Equalizer and Memory

PGY-UFS3.X provides flexibility to the set TX and RX CTLE and DFE equalizer to address reflection and poor SI signals while probing the MPHY signals. This helps in reducing the error decoding of packets. A newly introduced hardware-based circular buffer provides the flexibility to continuously capture the protocol data and analyze the data in circular buffer size. Users can set triggers on the circular buffer and capture the protocol data at specific events.

UFS Protocol Layer Decode

PGY-UFS3.X-PA Software can display each UFS packet parameter in a listing window. Right-click lists all the packet parameters for user selection. Users can color code the fonts or background color for easy identification of each UFS packet.

PACP and UniPro View

PGY-UFS3.X-PA Software separates the PACP packets in a separate view for easy analysis of power mode change packets and links to UniPro packets. Users can view the MPHY states stall, prepare, and sync information in UniPro view apart from the user selection for L_Data and AFC/NACK Packet details.

Error Events, Search, and Filter

PGY-UFS3.X-PA Software does the live decode and lists all the events. The list of events is shown in this picture. Users can easily note the errors in captured protocol data. In large buffer capture, it takes extremely difficult to locate the errors. But PGY-UFS3.X-PA software simplifies this by listing events while decoding the captured data. Search and Filter allows you directly locate the error events or UFS or UniPro or PACP packet in the protocol listing windows. Filter-in and Filter-out make it easy to view the data of interest in the protocol listing window

Comprehensive Protocol Analysis Using Multi-View

PGY-UFS-PA UFS Protocol Analyzer provides USB 3.0 and Gbe interface for host computer connectivity. High-speed host connectivity enables continuous streaming of protocol data to host HDD and storage for a long period. The software offers multi-view such as MPHY view, UniPro view, and UFS View. Each view lists the respective protocol packets and their details with a correlation of each layer for easy debugging.

PGY Protocol Analyzer’s easy-to-use interface reduces the protocol analysis time. Time-stamped view of protocol decode listing provides an easy view of protocol activities between the host and the device. At a click of a button, the user can view the decode of each packet and the intended function. The floating window software architecture allows the user to view each protocol layer on separate monitors for easy debugging. Autocorrelation of each selected packet from UFS to MPHY layers simplifies the debug activity.

Solder Down Probe Tips

Probing the UFS signal is one of the key challenges in reliable UFS protocol decode. In most of the DUT, test points are located close to each other without enough space to solder the probe tips. Prodigy Technovations offers three types of 14 Gbps Probe tips which provide flexibility to choose the probe tips to meet the need. P5021-L and P5021-L-WE Probe tips have isolation resistors that can be changed based on the signal strength at test points. This helps in reducing reflections while accessing the test point and maintaining the signal integrity. The passive equalizer in P5021-L-WE helps in maintaining the differential impedance between the lane. If test points are easily accessible, then the P5021 probe tip can be used to probe the test points.

Specifications​

Data Rates Supported

PWM G1 to G7, High Speed Gear 1, Gear 2, Gear 3 and Gear 4, Rate A and

B, Gear 5 Rate A and B

Link width

Configurable for 1TX/1RX or 2TX/2RX

Probes

Solder Down Active Probes

Protocol Decode

UFS, MPHY and UniPro layers

Trace Capture Size

Supports Continuous streaming of Protocol data to Host computer SSD/HDD. Tested For 30GB of Trace Depth

Trigger

Based MPHY, UniPro, UFS Packets

Front Panel Connectors

Interface for Active probes. Trigger in/out SMA connectors

Interface for Host Computer

USB3.0 and Gigabit Ethernet interface

Host Computer Requirements

Windows 7/8.0/8.1/10 64bit operating System. It supports a RAM of minimum 8GB, but the product would give a faster response for a 16GB. The minimum storage capacity of 1GB should be available in the hard disk drive. User can use more storage based on trace storage requirement Display resolution of the monitor is 1024x768, Host computer should support USB30 or Gße interface.

Dimension

(W x H x D) (20.5X5X25) cms

Weight

Approx. 2.5Kg

Power Requirement

12V, 3A DC Power Supply (AC/DC Supplied along with Analyzer)

Trigger Specifications​

Stack

Protocol Analyzer

Packet Type

 

Link Start-up Sequence

(TRG_UPRO0)

(TRG_UPRO1)

(TRG_UPRO2)

UniPRO

PHY Capability Adapter Packets (PCAP)

PACP_PWR_reg

PACP_PWR_cnf

PAC_Cap_ind

PACP_Cap_EXT1_ind

PACO_EPR_ind

PACP_TestMode_req

PACP_GET_req

PACP_GET_cnf

PACP_SER_req

PACP_SET_cnf

PACP_TEST_Data_0

PACP_TEST_Data_1

PACP_TEST_Data_2

PACP_TEST_Data_3

 

Data Link Packets

SOF

EOF

EOF_ODD

EOF_EVEN

COF

AFC/NAC

Traffic class 0/Traffic class 1

UFS

UFS Layers Packets

NOP IN

NOP OUT

Commands

Response

Task Management Request

Task Management Response

Ready To Transfer

Ready to Transfer

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