Xilinx XAPP169 manual Control Port Timing

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MP3 NG: A Next Generation Consumer Platform

RST
t irs				Repeated
Stop	Start			Repeated		Stop
Stop	Start			Start		Stop
SDA
t buf	t hdst	t high		t hdst	t f	t susp
SCL
	t low	t hdd	t sud	t sust	t r

Figure 6: Control Port Timing

(Courtesy Cirrus Logic)

The serial port can be configured for several operating modes. The mode of operation chosen for this application is referred to in the CS4343 documentation as "Serial Audio Format 2". Figure 7 gives an overview of serial port timing when in this mode.

LRCK

SCLK

SDATA

Left Channel

Right Channel

15 14 13 12 11 10

Figure 7: Serial Port Timing

(Courtesy Cirrus Logic)

XAPP169 (v1.0) November 24, 1999	www.xilinx.com	7
	1-800-255-7778

Image 7

Contents MP3 Background MP3 NG a Next Generation Consumer PlatformSummary IntroductionMP3 Technology Solution OverviewMP3 NG a Next Generation Consumer Platform IDT RC32364 RISController MP3 NG System Block DiagramRC32364 Block Diagram RC32364 Read Timing Crystal CS4343 Stereo DAC CS4343 Block DiagramControl Port Timing Samsung Flash Memory KM29U64000T Block DiagramKM29U64000T Read Timing Micron Sdram MemoryMT48LC1M16A1 Block Diagram Function Controller National SemiconductorSoftware Architecture System ImplementationMP3 Decoder and Audio ISR UI ManagerCode Initialization Xilinx SpartanMemory Manager Block MappingIP Bus Controller Fpga Logic Block DiagramCPU Interface CPU Interface Block DiagramCpumasterclk LCD ControllerLCD Controller Interface Signal Summary LCD Controller Block DiagramMemory Interface Memory Interface Block DiagramSdram Controller Sdram Controller Interface Signal Summary Type DescriptionFlash Controller Performance Error HandlingIrda Controller Irda Controller Block DiagramAudio DAC Interface Audio DAC Interface Block DiagramTouch Screen Interface Audio DAC Interface Signal Summary Type DescriptionSpartan Device Selection ConclusionTotal 500 137 References Date Version # Revision 11/24/99 Initial release Revision History

XAPP169 specifications

Xilinx XAPP169 is a pioneering application note that delves into the design and implementation of high-performance digital signal processing (DSP) systems. It serves as a reference guide for engineers and designers looking to leverage Xilinx Field Programmable Gate Arrays (FPGAs) for sophisticated DSP applications. The document provides a comprehensive overview of the techniques and methodologies necessary to harness the power and flexibility of FPGA technology in DSP design.

One of the main features of XAPP169 is its focus on the integration of various DSP functions, including filtering, modulation, and Fourier transforms. By utilizing the inherent parallelism of FPGAs, designers can achieve significant performance enhancements compared to traditional DSP implementations. This parallel processing capability allows for real-time processing of high-bandwidth signals, making XAPP169 ideal for applications such as telecommunications, aerospace, and medical imaging.

The application note emphasizes the use of Xilinx’s advanced tools and libraries, such as the Xilinx System Generator for DSP and the Xilinx Vivado Design Suite. These tools facilitate the modeling, simulation, and synthesis of DSP algorithms tailored to specific requirements, enabling a rapid development cycle. By providing pre-optimized building blocks and IP cores, XAPP169 streamlines the design process, reducing time-to-market for new products and innovations.

Additionally, XAPP169 highlights the ability to leverage high-speed serial transceivers present in Xilinx FPGAs. These transceivers enable reliable transmission of data across long distances with minimized latency and optimized bandwidth utilization. The application note outlines various techniques for managing signal integrity and maximizing throughput, ensuring that designs can meet the stringent requirements of modern DSP applications.

Another characteristic of XAPP169 is its attention to resource utilization and optimization strategies. The document discusses how to balance performance with area and power consumption, which is crucial in embedded applications where space and power are at a premium. By employing advanced synthesis strategies and leveraging the capabilities of Xilinx’s architecture, designers can create efficient and scalable DSP systems.

In summary, Xilinx XAPP169 serves as an invaluable resource for engineers seeking to harness the capabilities of FPGAs in DSP applications. With its focus on high-performance design, integration of advanced tools, and optimization strategies, it opens up new possibilities for innovation in various fields where digital signal processing is essential.