Pre Silicon DDR Engineer
- Capgemini
- 5 - 10 years
- Bengaluru
- 17 hours ago
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Job Description
- 1. Understanding Pre-Silicon Verification for DDR5/LPDDR4/LPDDR5
- Pre-silicon Verification means verifying design and firmware before the silicon chip is fabricated. It includes simulations, emulation, and formal verification to catch bugs early.
- For DDR memory interfaces (DDR5, LPDDR4, LPDDR5), pre-silicon validation focuses on:
- Protocol compliance (timing, command sequences, training sequences)
- Signal integrity modeling and timing margins
- Firmware interactions (training firmware, calibration sequences)
- Power management features (especially for LPDDR5 with deeper power states)
- 2. Key Tasks in Pre-Silicon Verification of DDR Firmware
- Simulation & Emulation
Using hardware description languages (HDL) and simulators (like Synopsys VCS, Cadence Incisive) for DDR PHY and controller. - Firmware Debugging & understanding of the firmware algorithms
Writing and testing memory training and calibration firmware: - Write leveling
- Read leveling
- DQ/DQS delay adjustments
- ZQ calibration
- VREF calibration
- Testbench Development
Creating verification environments that simulate DDR traffic, inject errors, and validate response. - Protocol Checks
Ensuring DDR commands follow JEDEC standards (DDR4/LPDDR4/LPDDR5 specs). - Power Management
Especially critical for LPDDR5 validate low power states, self-refresh, deep power down modes. - Integration with SoC Firmware
Ensuring smooth handoff between firmware and DDR controller. - 3. Skills for 4-5 Years Firmware Experience
- Proficient in C for low-level firmware
- Experience with hardware simulators and emulators
- Understanding DDR PHY/controller architecture and JEDEC DDR standards
- Familiarity with DDR training algorithms and calibration routines
- Debugging skills using logic analyzers, oscilloscopes, and simulation waveforms
- Version control and collaborative development (Git, Gerrit)
- Good knowledge of memory controller registers and MMIO access
- Basic scripting skills (Python, Perl) for automation and testbench generation
- 4. Sample Resume Summary for This Role
- Firmware Engineer with experience, specializing in pre-silicon Verification and firmware development for DDR4, LPDDR4, and LPDDR5 memory interfaces. Expertise in memory training firmware, calibration algorithms, and protocol compliance validation in simulation and emulation environments. Skilled in C/C++, testbench development, and integration of DDR firmware with SoC designs, ensuring robust memory subsystem performance and power management compliance
Job Classification
Industry: IT Services & ConsultingFunctional Area / Department: OtherRole Category: OtherRole: OtherEmployement Type: Full timeContact Details:
Company: CapgeminiLocation(s): Bengaluru+ View Contact
Keyskills: Pre Silicon Validation Ddr Design Verification UVM System Verilog
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