VLSI Design and Verilog Programming: From Basics to Advanced

Form an electron channel when VGS exceeds VD, enabling drain current ID from source to drain in an enhancement-mode MOSFET; below VD, the channel does not form (cut-off).

Explore how enhancement-mode MOSFETs operate across triode and saturation regions, with pinch-off and threshold voltage, and compare nMOS and pMOS behavior under VGS and VDS.

Explore system on chip design, comparing ASICs and IP cores, with soft vs hard IP and reusable, reconfigurable SoC methods that cut power, cost, and time to market.

Master the core vlsi domains, including logic design, analog design, synthesis, and static timing analysis, and learn RTL coding with Verilog and VHDL to model digital and analog blocks.

Master design verification and physical design in vlsi, using testbenches, netlists, and eda tools from Synopsys, Cadence, Mentor Graphics to validate specifications, detect bugs early, and optimize layout under constraints.

Explore design for testability (DFT), analog mixed-signal verification (AMS), and physical verification within a 90-nm chip layout, covering EDA tools, PD flow, and tapeout.

Explore how physical verification checks layout versus schematic and netlist timing. Learn how design for manufacturability, DRC, LVS, and concerns like antenna effect and electromigration are addressed during layout verification.

Explore the end-to-end chip design workflow from system specification to physical design, verification, and fabrication, highlighting eco changes, physical verification, DRC/LVS/ERC, and DFT testing.

Explore basic and universal gates, including and, or, not, nand, nor, xor. Learn truth tables, Karnaugh mapping, and two- and three-input circuit concepts.

Explore the properties and truth tables of xor, xnor, nand, and nor gates, and discover why nand and nor are universal gates in digital design.

Explore the CMOS universal gate realization of a nand gate, using parallel pMOS and series nMOS networks, and analyze biasing, open and short circuits to determine the output.

Explore the nor gate equivalent in CMOS circuits, examining nMOS and PMOS biasing, current flow, and series versus parallel arrangements to understand CMOS logic behavior.

Explain combinational versus sequential circuits, noting memory in sequential designs, and illustrate a full adder with inputs using xor, and, nand gates to produce sum and carry via truth table.

Derive full-adder sum and carry expressions using Karnaugh maps, and explain half-adders, multiplexers, and demultiplexers, including a 4-to-1 mux and CMOS implementation with MOSFET count and density.

Explore the corrected SR latch explanation, showing how set, reset, and memory states store one bit of data using NAND gates, and analyze undefined states and stability for memory design.

Explore a synchronous t flip-flop down counter starting from 111 to 000, using a common clock and interdependent q0, q1, q2 with propagation delays to keep the count stable.

Explore t flip-flops and programmable logic through up and down counters, asynchronous and synchronous designs, clocking, and toggle behavior driven by truth tables.

Learn how programmable logic devices enable reconfigurable, memory-enabled design for combinational and sequential circuits, saving design effort, space, and time.

Explore programmable logic devices like PLA and PAL, implemented with HDL languages (VHDL, Verilog), and learn how PLA uses programmable planes for sum-of-products, unlike PAL.

Explore how fpgas are programmed using fusible links, laser fuses, and uv erasable memories, including floating gate structures that raise transistor thresholds.

Explore field programmable gate arrays as reprogrammable, flexible devices built from logic blocks, interconnects, and sram, programmed with Verilog or VHDL for parallel processing and bulk production.

Explore state machine design in vlsi, where present inputs and the current state determine the next state, using combinational logic and memory, and compare two design methods.

Explore how finite state machines drive sequences in DSPs, industrial control, robotics, and counters, including timing, event monitoring, and multi-condition decisions.

Explore the Moore and Mealy finite state machines, compare direct versus conditional control, and design an FSM from a state diagram and truth table, with HDL implementations on FPGA.

This lecture explains a Moore state machine for detecting three or more consecutive ones, outlining A/B/C/D transitions and outputs, plus state encoding and a vending machine coin counter example.

Design a finite state machine to detect the binary sequence 10110 using five states and overlapping transitions, with resets and real world applications in ethernet, wireless, and error coding.

Develop and compare finite state machines for detecting sequences like 11011 and 1011, including overlapping detection, state-saving, and a reduced-flip-flop variant.

Practice designing a 11011 finite state machine to master digital logic and sequential circuits. Explore Verilog programming, design flow, concurrency, timing, and FPGA-friendly concepts introduced in this module.

Verilog enables concurrency and timing to describe digital systems from gate level to RTL, modeling wires, registers, switches, and flip-flops for fast design, verification, simulation, and synthesis.

Explore Verilog basics, including lexical conventions, keywords, identifiers, numbers, and strings, and illustrate case sensitivity, comments, whitespace, and module syntax for readable, reusable code.

Explore how Verilog represents numbers with decimal, binary, hexadecimal, and octal formats. Learn about sized and unsized values, two's complement for negatives, and radix prefixes b, h, d, o.

Explore Verilog strings on a single line with ASCII values, hello world, four logic values 0, 1, x, z, plus nets, wires, tri-state behavior, and registers storing the last value.

Explore Verilog data types and registers, how they store values and form memories, declare vectors and buses, and compare unsigned, signed, integer, time, and real types in procedural blocks.

Master Verilog basics, including time as a data type and simulation time with dollar time. Explore arrays, memories, parameters, strings, registers, and module structure with data flow and behavioral blocks.

Learn the basic Verilog module structure, including port lists, declarations, data flow statements, and lower-level module instantiation, with a focus on D flip-flops and the difference between instantiation and functions.

Explain how to write D flip flop Verilog code, including port declarations, and a D register updated on clock with reset; show instantiation and T flip-flop built from D flip-flop.

Learn to design a t flip flop from a d flip flop, including module instantiation and wiring, and build a four-bit ripple carry counter with four t flip flops.

Instantiate four t flip flops in verilog to form a four-bit ripple carry counter, each with a unique name, clock and reset, with q outputs driving the next stage.

Explore Verilog basic gates by instantiating predefined primitives in a module, with outputs on the left and inputs on the right, using unique instance names and multiple inputs.

Explore Verilog behavioral modeling and the various operators it supports, including arithmetic, bitwise, relational, logical, reduction, shift, concatenation, and conditional operators, with C-like familiarity and $display usage.

Relational operators compare operands and return a 1-bit result (1 or 0); unknown X propagates. Bitwise and logical operators in Verilog operate bit by bit and extend operands with zeros.

Explore Verilog operators from logical or and shift to reduction and conditional operators, including concatenation and mux synthesis, with assign statements and left/right shifts.

Explore timing control in Verilog, highlighting delay-based, event-based, and level-based methods. The lecture demonstrates delay semantics, hash delays, and a clock generator example with reset timing in simulation.

Explore delay based intra assignment in Verilog, where the right-hand side is evaluated immediately while the left-hand side is deferred, contrasting regular delay with zero-delay control.

Explore event-based timing control in Verilog by defining events as signal changes and using regular and named event controls (edge and pause edge) to trigger statement blocks.

Learn event based timing control in Verilog by naming events, triggering receive data on the last packet, buffering via concatenation, and applying sensitivity lists for D flip-flops.

Explore Verilog procedural blocks, focusing on initial and always blocks, their execution timing, and how they control behavior with examples of clock-driven updates and resets.

Explore Verilog procedural blocks, including sequential and fork-join parallel constructs, and learn how wires, nets, and registers handle data with timing, initialization, and debugging insights.

Explore blocking and non-blocking assignments in Verilog, contrast sequential and parallel execution, and learn conditional statements with begin-end blocks through examples.

Explore Verilog looping constructs, case statements, and RTL examples, including mux designs, default and error handling, and special x and z cases, with forever, repeat, while, and for.

Explore Verilog constructs from gate-level to RTL modeling, understanding data flow in D latch and full adder, and gain hands-on practice with RTL coding and verification tools.