Arria® 10 GX Transceiver Signal Integrity Development Kit User Guide
ID
683553
Date
12/01/2025
Public
1. About This Development Kit
2. Getting Started
3. Development Board Setup
4. Board Update Portal
5. Board Components
6. Board Test System
7. Document Revision History for the Arria® 10 GX Transceiver Signal Integrity Development Kit User Guide
A. Programming the Flash Memory Device
B. Safety and Regulatory Compliance Information
A.1. CFI Flash Memory Map
A.2. Preparing Design Files for Flash Programming
A.3. Creating Flash Files Using the Nios® II EDS
A.4. Programming Flash Memory Using the Board Update Portal
A.5. Programming Flash Memory Using the Nios II EDS
A.6. Restoring the Flash Device to the Factory Settings
A.7. Restoring the MAX® V CPLD to the Factory Settings
5.7.2. General Purpose Clocks
In addition to the transceiver dedicated clocks, five other clock sources will be provided to the FPGA global CLK inputs for general FPGA design as shown in the figure below.
The usage of these clocks is as follows:
- 50 MHz oscillator through an ICS8304 buffer for Nios® II applications. This clock is also routed to the MAX® V device for configuration.
- 25 MHz crystal supplied to an ICS557-03 Spread Spectrum differential clock buffer. The available frequencies and down spread percentages available from the spread spectrum buffer as shown in the table below
- External differential clock source from SMA connectors.
- Four 100 MHz clock outputs are provided from an SiLabs Si5338A-Custom clock buffer.
- CLK0: 100 MHz LVDS standard
- CLK1: 100 MHz LVDS standard
- CLK2: 100 MHz 1.8 V CMOS standard
- CLK3: 100 MHz LVDS standard
- One 125 MHz LVDS standard oscillator output.
Figure 10. General Purpose FPGA Clocks
| Spread Spectrum Buffer (inputs) | Output Clock Select (MHz) | Spread (%) | |
|---|---|---|---|
| SS1/S1 | SS0/S0 | ||
| 0 | 0 | 25 (Default) | Center ±0.25 |
| 0 | 1 | 100 | Down -0.5 |
| 1 | 0 | 125 | Down -0.75 |
| 1 | 1 | 200 | No Spread |