R

Chapter 4: Designing with the Core

Source Burst Mode Example

SrcBurstLen equals 2 credits and 1.5 credits are written into the FIFO followed by 0.5 credits. Figure 4-35illustrates the behavior of the Source core when SrcBurstMode=0. Figure 4-36illustrates the behavior of the Source core when SrcBurstMode=1.

SrcFFClk

 

 

 

 

SrcFFWrEn_n

 

 

 

 

SrcFFAddr

 

CH1

 

CH1

SrcFFData

00 01 02 03

04 05 06 07

10 11 12 13

14 15 16 17

SrcFFMod

000

000

000

000

SrcFFSOP

 

 

 

 

SrcFFEOP

 

 

 

 

TDClk_P

TDat_P

C1 00 01 02 03 04 05 06 07 C2 IDLE IDLE IDLE IDLE C3 10 11 12 13 14 15 16 17 C4

TCtl_P

Figure 4-35:Example Of Source Burst Mode = 0

SrcFFClk

 

 

 

 

SrcFFWrEn_n

 

 

 

 

SrcFFAddr

 

CH1

 

CH1

SrcFFData

00 01 02 03

04 05 06 07

10 11 12 13

14 15 16 17

SrcFFMod

000

000

000

000

SrcFFSOP

 

 

 

 

SrcFFEOP

 

 

 

 

TDClk_P

 

 

 

 

TDat_P

 

 

C1 00 01 02 03 04 05 06 07 10 11 12 13 14 15 16 17 C2

 

TCtl_P

 

 

 

Figure 4-36:Example Of Source Burst Mode = 1

Synchronization and Start-up

After the Source core has been initialized, as described in “Initializing the SPI-4.2 Lite Core,” page 52, the source core has to be synchronized before data and status can be received and transmitted. Figure 4-37is a state machine diagram illustrating the Source core startup and error condition processing.

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SPI-4.2 Lite v4.3 User Guide

 

 

UG181 June 27, 2008

Page 94
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Xilinx UG181 manual Source Burst Mode Example, 35Example Of Source Burst Mode =

UG181 specifications

Xilinx UG181 refers to the User Guide for the Xilinx 7 Series FPGAs, which offers a comprehensive overview of the architecture, capabilities, and features of these powerful field-programmable gate arrays (FPGAs). Designed to cater to a wide range of applications, Xilinx 7 Series FPGAs are widely adopted in industries such as telecommunications, automotive, aerospace, and consumer electronics.

One of the main features of the Xilinx 7 Series FPGAs is their use of advanced 28nm technology, which enables them to achieve high performance while maintaining low power consumption. This fine process technology not only ensures better power efficiency but also allows for increased logic density. The 7 Series includes several families, such as Artix-7, Kintex-7, and Virtex-7, each tailored for specific application demands ranging from cost-sensitive solutions to high-performance data processing.

Xilinx 7 Series FPGAs also incorporate a rich set of programmable logic resources. This includes Look-Up Tables (LUTs), Flip-Flops, and Digital Signal Processing (DSP) slices that have been optimized for various arithmetic functions. With several thousands of logic cells available, designers can implement complex algorithms and systems directly in hardware for improved performance over traditional software solutions.

In addition to their logic capabilities, Xilinx 7 Series FPGAs feature an array of high-speed serial communication interfaces. These include support for technologies like PCI Express, Gigabit Ethernet, and Serial RapidIO, which facilitate efficient data transfer and integration into enterprise-level systems. The presence of high-speed transceivers also makes them ideal for applications that require fast data handling like video processing or high-frequency trading.

Furthermore, these FPGAs offer extensive memory options, including support for a wide range of external memory interfaces. This versatility allows for the integration of high-bandwidth memory solutions, which is essential for performance-intensive applications. With the introduction of the Memory Controller IP, users can easily connect various memory types, ensuring flexibility in system design.

Finally, Xilinx has made significant strides in development tools for 7 Series FPGAs, providing a robust ecosystem for design engineers. With design suites such as Vivado and SDK, users benefit from a comprehensive platform for deciding, simulating, and implementing designs efficiently. The combination of advanced hardware capabilities and powerful software tools solidifies the position of Xilinx 7 Series FPGAs as a preferred choice for custom digital hardware design across various industries.