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This design establishes a standardized, reusable video data interconnect interface using SystemVerilog interface constructs. It decouples timing-critical video signaling (e.g., sync pulses and pixel data) from functional blocks, enabling modular integration, scalable testbenches, and hardware-agnostic verification. Interface Definition: video_b ...

SystemVerilog Design Hierarchy Enhancements SystemVerilog introduces numerous extensions to Verilog that significantly improve how designers represent and work with hardware design hierarchy. This article explores the key constructs that enable more efficient modeling of complex digital systems, from module prototypes to parameterized types. Mo ...

6.1 General Purpose Always Block in Verilog The always procedural block creates an infinite loop executing its contained statements repeatedly. Simulation advancement requires time controls or event controls such as delays (#), wait conditions, or event triggers (@). always @(a, b) begin sum = a + b; diff = a - b; prod = a * b; end ...

SystemVerilog introduces interface as a first-class abstraction for modeling communication channels between design blocks. Unlike Verilog’s flat port-list approach, interfaces unify signal declarations, directionality, protocol logic, and verification constructs into a single, reusable unit—enabling cleaner hierarchy, safer connectivity, and sc ...

Module Interface Overview The AXI4 Master interface consists of five distinct channels: Write Address (AW), Write Data (W), Write Response (B), Read Address (AR), and Read Data (R). Signals prefixed with M_AXI_ indicate the Master side of the interface. Specifically, AR_* signals belong to the Read Address channel, AW_* to the Write Address cha ...

SystemVerilog extends Verilog's built-in variable types and enhances how literal values can be specified. This chapter explains these enhancements and offers recommendations on proper usage. Several examples illustrate these enhancements in context. Subsequent chapters contain other examples that utilize SystemVerilog's enhanced variable types ...

SystemVerilog enhances hardware modeling through higher-level abstractions like enumerated types, 2-state data types, and specialized procedural blocks such as always_comb, always_ff, and always_latch. These constructs simplify the design and verification of finite state machines (FSMs) while improving consistency across simulation and synthesi ...