Ashok Vijayarangam

CEO

Bengaluru, Karnataka, India24 yrs 3 mos experience
Most Likely To SwitchHighly Stable

Key Highlights

  • Over 25 years of experience in VLSI design and verification.
  • Expertise in architecting complex SOC verification environments.
  • Strong background in Ethernet standards and protocols.
Stackforce AI infers this person is a Telecommunications and Semiconductor expert with extensive experience in VLSI and verification methodologies.

Contact

Skills

Core Skills

High Speed Multi-gigabit Serial Interface (serdes)UvmVerification EnvironmentFunctional VerificationPcieFpgaAutomated Testing

Other Skills

Gigabit Ethernet (GbE) PHYsIEEE802.3 Ethernet StandardsVMM RAL generationPCIe Physical Layer moduleLink Training Status State MachineDigital Far End LoopbackTx Margin and Tx De-emphasisAutomated Test SetupVME Radar processorRS232RS422Embedded SystemsEmbedded SoftwareASICDebugging

About

Over 25+ Years of Industrial Experience in the field of VLSI. Responsibilities include architecting the verification environment for complex SOC. Implementing the Verification Environment using Verilog/ System Verilog/ VMM/ AVM/ OVM/ UVM Methodologies. Implementation of verification environment with pure class or pure module or hybrid models experience for complex SOC using AVM. Involved in verification closure of blocks/chips and SOC. Familiarity with Pre-Si/Post-Si verification methodology. Experience in Functional Verification which includes knowledge in test plan, Functional coverage, code coverage, exclusion files, test writing, regression handling, test debugging and scripting. Generating the VMM RAL Model and integrating them into the ASIC Flow/Environment. Generating the Sequence Library Package and Virtual Sequences while delivering the VIP for client. Implementing the Layered Sequences approach based on the Application requirement. Fixing the Arbitration scheme for the Sequencer. Knowledge on setting up the Register Layer / TLMs/ Factory & Configuration / Taking proper care of the sequences and Feeding them in UVM. Experience in High speed multi-gigabit serial interface (SerDes) PMD Digital Module. Knowledge of Gigabit Ethernet (GBE) PHYs including the 40GbE and 100GbE Standards. Intense knowledge in IEEE802.3 Ethernet Standards. Most closely worked on clauses 72 (startup protocol for 10GBASE-KR Module), Clause 93(startup protocol for 100GBASE-KR4 PMD module), Clause 22 (MDIO Interface) and Clause 45 (Extension of MDIO for 10GbE Networks) of Ethernet Standards. Intense knowledge in VMM/ OVM/ UVM Advanced concepts which is used for building the verification environment to validate the Functionality of complex chipset. Knowledge in Assertion Based Verification (ABV) in front end ASIC flow using SVA (System Verilog Assertions)

Experience

24 yrs 3 mos
Total Experience
6 yrs
Average Tenure
8 yrs 2 mos
Current Experience

Intel corporation

3 roles

Senior Manager - SoC Design Engineering

Mar 2022Present · 4 yrs 3 mos

Manager - SOC Design Engineering

Oct 2020Mar 2022 · 1 yr 5 mos

Manager of iCDG Group

Mar 2018Sep 2020 · 2 yrs 6 mos

Broadcom

Principal Engineer

Nov 2010Mar 2018 · 7 yrs 4 mos · RMZ Ecospace, Bangalore

  • Experience in High speed multi-gigabit serial interface (SerDes) PMD Digital Module. Knowledge of Gigabit Ethernet (GbE) PHYs including the 40GbE and 100GbE Standards. Intense knowledge in IEEE802.3 Ethernet Standards. Most closely worked on clauses 72 (startup protocol for 10GBASE-KR Module), Clause 93(startup protocol for 100GBASE-KR4 PMD module), Clause 22 (MDIO Interface) and Clause 45 (Extension of MDIO for 10GbE Networks) of Ethernet Standards.
  • Block Level sign off for Clause 72 and Clause 93 protocol supported for 10GbE onwards , which includes VMM RAL generation from the RDB file and integrate it to the Block Level Verification. Used Ethernet VIP from third party (not revealing the company for confidentiality) as Link Partner for Clause 72/93 to ensure the tuning of the Digital Equalizer happens as per the protocol. Verified the Clause 93 protocol addressed for 10GbE onwards. The existing Block Level Environment was scaled easily to support Clause 93 and Clause 72 Functionality.
  • Experience includes MAC+PCS+PHY (SERDES) layer Verification using UVM. Validating the Auto Negotiation (Clause 73) for 10GKR and Auto Adaption (Clause 72) for 10GKR Module. Scheduler Block part of MAC performs the Encapsulation of IPV4 and IPV6 (Single VLAN and Double VLAN) Ethernet Frames based on the PW.
  • Involved in the verification of UpStream Packet Scheduler which includes the IPV4 / IPV6 Encapsulator + XGMAC + PCS (AN+KRT) + SERDES.
  • Synopsys DWC kr_pcs Module was configured to initiate AN and KRT as part of initialization/training Sequence.
  • Auto Negotiation Feature verification was handled using Synopsys VIP. Auto Adaption (Clause 72) Feature verification was handled using Synopsys VIP.
  • STAR was created on the 10GKR-AN Golden Model and Synopsys agreed on the same.
  • Architecting the Verification Environment for the JEDEC JESD 204B/C Sub System which includes the Transport Layer and Link Layer.
High speed multi-gigabit serial interface (SerDes)Gigabit Ethernet (GbE) PHYsIEEE802.3 Ethernet StandardsVMM RAL generationUVMVerification Environment

Xilinx

Verification Lead

Aug 2005Nov 2010 · 5 yrs 3 mos · Greater Hyderabad Area

  • Performing Functional Verification of the PCIe Physical Layer module, which included following features, namely,Transmission check carried in P0, P0s, P1 and P2 states of the Device. Validated power state cycling feature such as P0<->P0s, P0<->P1 and P0<->P2 states. Verified the 2.5GTS link and 5.0GTS link connectivity.Beacon Transmission Check carried out.Tx Electrical Idle and Rx Electrical Idle Check performed. Validated the Rx Polarity Inversion Feature in both Rates.Validated various Rx Status such as SKP added, SKP removed, 10b/8b Decode error, Disparity error, EB (Elastic Buffer) overflow and EB (Elastic Buffer) underflow.Validated Fixed Data Width Implementation and Fixed PCLK Implementation for achieving higher rates.Validated Tx Margin and Tx De-emphasis feature (till the end of Digital Block).Digital Far End Loopback (DFLB) & Near End Loopback (DNLB) were validated in Gen1 and Gen2. Validated all the PLP (Physical Layer Packets) Transmission capability of the device such as SKP, IDL, FTS, TS1 and TS2 Packets (Ordered Sets). LTSSM (Link Training Status State Machine ) Arc Closure.
Functional VerificationPCIe Physical Layer moduleLink Training Status State MachineDigital Far End LoopbackTx Margin and Tx De-emphasisPCIe

Drdo, centre for airborne systems

Scientist B

Feb 2002Aug 2005 · 3 yrs 6 mos · LRDE, C V Raman Nagar, Bangalore

  • Design and development of FPGA based automated TEST SETUP for the VME Radar processor.
  • An Automated Test setup had been developed for the automated testing of the VME based Multi Processor Radar system. The Radar Multi Processor system reports the status to the Test setup via the RS232, RS422 channel. The Controller functionality has been incorporated in the XILINX module for automated testing of the Radar Multi Processor system. The PCB also houses High Speed DACs for Radar echo signal generation. The noise signal is stored in ROM (creating package in RTL coding) External Memories for full-automated testing functionality. The GUI application runs on the custom PC that sends control word.
FPGAAutomated Test SetupVME Radar processorRS232RS422Automated Testing

Education

Pondicherry University

B.Tech (Distinction)

Jan 1997Jan 2001

Don Bosco Matriculation School

Jan 1984Jan 1997

Stackforce found 100+ more professionals with High Speed Multi-gigabit Serial Interface (serdes) & Uvm

Explore similar profiles based on matching skills and experience