S2C Limited.
S2C Limited.
Verification Flow

Funictional Verification

What is functional verification?

In EDA (electronic design automation), functional verification verifies that the logic design conforms to specification. Functional verification does not confirm the correctness of the design specification and assumes that the design specification is correct. It is one of the most challenging steps of the IC design cycle and is the main reason for IC re-spin.

Why is functional verification necessary?

In the 2020 Wilson Research Group Functional Verification Study, figure 1 shows various categories of design flaws contributing to IC/ASIC re-spins, where the percentage of “logic or functional flaws” remains the leading cause of bugs.

asic type of flaws contributing to respin

Figure 1: Type of ASIC Flows Contributing to Re-spin

Functional verification can be attacked by many methods, but none of them are perfect. Each can be helpful in certain circumstances.

  • Logic simulation

  • Emulation

  • FPGA-based Prototyping

  • Formal verification

Purpose of the functional verification

  • Functional correctness of individual IPs

  • Internal module communication

  • External module communication

  • End to end functional paths

  • Pad connectivity

  • Clock and reset circuits

  • Power up and down sequence

  • Complete integration of all IPs

Related S2C Complete Prototyping Solutions
Prodigy ProtoBridge
FPGA-based prototypes closely resemble final silicon chips in speed and accuracy, providing significant value in full-chip validation and early software development. Realizing these benefits has histo...
Multi-Debug Module Pro
The S2C Prodigy Multi-Debug Module is an innovative debug solution for FPGA prototyping. It has the ability to run deep-trace debugging on multiple FPGAs simultaneously. It can trace up-to 32K signals...
Prodigy Logic Matrix
High Performance and HighDensity Prototyping
What's New at S2C
Request for Quote
What type of chip are you designing
What is the capacity of the ASIC gate included in the design?
5 million-20 million
20 million-50 million
50 million-100 million
100 million-1 billion
More than 1 billion
Which FPGA do you prefer to use?
Xilinx VU440
Xilinx KU115
Xilinx VU19P
Xilinx VU13P
Xilinx VU9P
Intel S10-10M
Intel S10-2800
Not sure, need professional advice
What kind of FPGA configuration do you need?
Single FPGA
Four FPGAs
Eight FPGAs
Not sure, need professional advice
What kind of peripheral interface do you need?
How many prototype verification platforms do you need?
Do you need the following tools?
Segmentation tool
Multiple FPGA debugging tools
Co-modeling tool (allows large amounts of data to interact between FPGA and PC host)
When do you need to use our products?
0-6 months
6-12 months
More than 12 months
Not sure
Any additional comments?