Best in class MIPI® DSI-2sm Verification IP for your IP, SoC, and system-level design testing.

In production since 2008 on dozens of production designs.

Cadence provides a mature and comprehensive Verification IP (VIP) for the DSI-2sm protocol, which is part of the MIPI® family. Incorporating the latest protocol updates, the mature and comprehensive Cadence® Verification IP for DSI-2sm Protocols provides a complete bus functional model (BFM), integrated automatic protocol checks, coverage model, and compliance tests. Designed for easy integration in testbenches at IP, system-on-chip (SoC), and system levels, the VIP for DSI-2 helps you reduce time to test, accelerate verification closure, and ensure end-product quality. Our VIP runs on all major simulators and supports SystemVerilog and e verification languages along with associated methodologies, including the Universal Verification Methodology (UVM) and Open Verification Methodology (OVM).

Supported Specification: MIPI for DSI v1.3.1,  DSI2 v1.0, v1.1, DSI2 v2.0 and DPHY v1.2, v2.0, v2.1 and CPHY v1.1, and v1.

MIPI DSI-2 diagram

Product Highlights

  • Support testbench language interfaces for SystemVerilog, UVM, OVM, e, and SystemC
  • Generates constrained-random bus traffic with predefined error injection at DSI, D-PHY, and C-PHY levels
  • Callbacks access at multiple TX and RX queue points for scoreboarding and data manipulation
  • Packet tracker creation for easy debugging
  • Dynamic activation to enable setting the VIP as active/passive during run time
  • Provides extensive coverage in SystemVerilog

Key Features

The following table describes key features from the specifications that are implemented in the VIP:

Feature Name Description

Receiver and Transmitter Verification

  • Verifies both DSI processor and peripheral

Physical Layer

  • Includes the MIPI D-PHYsm/C-PHYsm VIP for physical layer verification

PHY Interfaces

  • Serial and Parallel PHY interfaces

Data Lanes

  • 1 to 4 data lanes

Power State

  • High-Speed and Low Power data transmission

LP Capabilities

  • Ultra-Low Power mode (ULPM), triggers and LP data transmission

Transmission of Multiple Packets

  • Several merged packets in a single PHY transmission

Traffic Modes

  • Sending and receiving of DSI packets and frames in command mode and all video modes

Accurate Video Mode Timing

  • Generation and checks of accurate video mode timings

Control of Payload Data

  • User can control the frame and packet payload

Scrambling

  • Enables data scrambling in order to mitigate the effects of EMI and RF self-interference

Built-In Test

  • Supports PRBS test debug pattern for C-PHY

Control Packet Data During BLLP Period

  • Enables the user to control the packets that are sent during BLLP periods in non-VACT lines

VESA Display Stream Compression Support

  • Performs actual compression/decompression and provides a set of checkers for monitoring of DSC-related traffic

Variable PPI HS Data Bus Width

  • Supports 8-, 16-, and 32-bit PPI HS data bus widths over D-PHY 2.0
  • Supports 16 and 32 PPI HS data bus widths over C-PHY

DSI2 v 1.1

  • Supports D-PHY specification 2.1 and C-PHY specification 1.2

DSI2 Over D-PHY 2.1

  • HS-Idle State, Alternate Calibration, and Preamble sequence

DSI2 Over C-PHY 1.2

  • ALP transactions and calibration sequence

Video Frame for BTA and ULP during BLLP

  • Supports sending and receiving BTA/ULP within video frame blanking period

DSI2 v2.0 Data Types

  • Data types SEP and PENP from Processor to Peripheral and vice versa and video frame data type PKT_PIXEL_STREAM_20_YCBCR422

Video Command Mode Seamless Transactions

  • Enables VIP to change command to video and video to command mode based on DCS command

仿真测试套件

广泛的测试集合、覆盖率模型和验证计划,与规范有明确的联系,可进行简单而快速的符合性测试。

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