AN 814: Intel Arria 10 Two x8-Lane JESD204B (Duplex) IP Cores Multi-Device Synchronization Reference Design

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ID 683731
Date 1/30/2018
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Document Table of Contents
Document Table of Contents x
1. Intel® Arria® 10 Two x8-Lane JESD204B IP Cores (Duplex) Multi-Device Synchronization Reference Design
1. Intel® Arria® 10 Two x8-Lane JESD204B IP Cores (Duplex) Multi-Device Synchronization Reference Design x
1.1. Hardware and Software Requirements 1.2. Reference Design Walkthrough 1.3. Reference Design Functional Description 1.4. Document Revision History for AN 814: Intel® Arria® 10 Two x8-Lane JESD204B IP Cores (Duplex) Multi-Device Synchronization Reference Design
1.2. Reference Design Walkthrough x
1.2.1. Hardware Setup 1.2.2. Running the Reference Design 1.2.3. Software Parameters 1.2.4. Software Functions Description 1.2.5. Reconstructing Design and Running in Hardware 1.2.6. Viewing the Results
1.2.2. Running the Reference Design x
1.2.2.1. Configuring the FPGA 1.2.2.2. Executing the Software C Code and Initializing the JESD204B Link
1.2.4. Software Functions Description x
1.2.4.1. Functions in main.c Source File 1.2.4.2. Custom Peripheral Access Macros in macros.c Source File
1.2.5. Reconstructing Design and Running in Hardware x
1.2.5.1. Regenerating Files, Recompiling Design and Configuring the FPGA 1.2.5.2. Rebuilding Software and Initializing the JESD204B Link
1.3. Reference Design Functional Description x
1.3.1. Top Level HDL 1.3.2. Clocking Scheme 1.3.3. FPGA Pin Assignments
1.3.1. Top Level HDL x
1.3.1.1. Platform Designer Top System Component 1.3.1.2. Transport Layer 1.3.1.3. Test Pattern Generator 1.3.1.4. Test Pattern Checker 1.3.1.5. Deterministic Latency Measurement Module 1.3.1.6. Frequency Checker
1.3.1.1. Platform Designer Top System Component x
1.3.1.1.1. JESD204B Subsystem 1.3.1.1.2. Nios® II Subsystem in Platform Designer 1.3.1.1.3. Core PLL 1.3.1.1.4. PLL Reconfiguration Controller 1.3.1.1.5. SPI Master
1.3.1.1.2. Nios® II Subsystem in Platform Designer x
1.3.1.1.2.1. Nios® II Processor 1.3.1.1.2.2. Nios® II Subsystem Address Map
1. Intel® Arria® 10 Two x8-Lane JESD204B IP Cores (Duplex) Multi-Device Synchronization Reference Design

1.3.2. Clocking Scheme

The reference design requires two clock sources coming from the Intel® Arria® 10 GX FPGA development kit for proper operation. The reference design uses the default 100Mhz clock frequency from on-board oscillator.

Table 13.  Reference Design System Clock Summary
Note: The IOPLL input reference clock is sourcing from device clock through the global clock network. Sourcing reference clock from a cascaded PLL output, global clock or core clock network might introduce additional jitter to the IOPLL and transceiver PLL output. Refer to this KDB Answer for a workaround you should apply to the IP core in your design.
Signal Name Description Usage
device_clk External 100 Mhz clock from X3 Si570 Programmable Oscillator. Input reference clock for core PLL (IO PLL), TX transceiver fPLL, RX transceiver CDR.
link_clk Link and transport layer clock from core PLL (IO PLL). Clock source for each JESD204B IP Core link layer and transport layer link interface, deterministic latency measurement module.
frame_clk Transport and application layer clock from core PLL (IO PLL).

Clock source for each transport layer, test pattern generator and checker.

mgmt_clk External 100 Mhz clock from X3 Si570 Programmable Oscillator. Management clock for nios II subsystem, transceiver reconfiguration interfaces, JESD204B IP cores Avalon-MM interfaces, altera PLL reconfig, SPI master, frequency checker.
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