8. AXI UART and AXI4-Stream Peripherals
The chapter provides a comprehensive overview of the AXI UART and AXI4-Stream peripherals, detailing their architecture, operational functionalities, and distinct applications in System on Chip (SoC) design. AXI UART is discussed as an effective means for serial communication, while AXI4-Stream is highlighted for its capabilities in high-performance, continuous data transfers. Furthermore, it emphasizes the importance of both in embedded systems, catering to diverse communication requirements.
Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- AXI UART enables efficient communication between ARM processors and external devices using the UART protocol.
- The AXI4-Stream interface is optimized for high-bandwidth, continuous data transfers between components.
- Both peripherals cater to different application needs within ARM-based SoC designs, enhancing flexibility and efficiency.
Key Concepts
- -- UART
- A widely used protocol for serial communication that allows for data transmission without a clock signal.
- -- AXI4Lite
- A protocol used for control register access in AXI interfaces, facilitating efficient configuration of peripheral parameters.
- -- FIFO
- First-In-First-Out buffer used in AXI UART and AXI4-Stream for temporary data storage during transmission.
- -- Flow Control
- Mechanisms like RTS and CTS in UART that manage the flow of data between sender and receiver to prevent data loss.
- -- Handshake Signals
- Signals used in AXI4-Stream to ensure data synchronization between master and slave components during data transfer.
Additional Learning Materials
Supplementary resources to enhance your learning experience.