1. Kit Features
2. Getting Started
3. Software Installation
4. Development Board Setup
5. Board Update Portal
6. Board Test System
7. Document Revision History for the Cyclone® V GT FPGA Development Kit User Guide
A. Programming the Flash Memory Device
B. Safety and Regulatory Compliance Information
6.5.1. Clock Control Features
The Clock Control application sets the Si570 and Si571 programmable oscillators to any frequency between 10 MHz and 810 MHz.
- The Si570 (not the Si571) oscillator drives a 1-to-6 buffer that drives a copy of the clock to the following areas of the FPGA:
- Top, bottom, and right edges
- REFCLK0 and REFCLK3
- The 6th clock outputs to SMAs J4 and J7 on the board.
- The Clock Control communicates with the MAX® V device on the board through the JTAG bus.
- The Si570 and Si571 programmable oscillators are connected to the MAX® V device through a 2-wire serial bus.
The following figure shows the Si570 tab of the Clock Control application, which has the same controls as the Si571 tab.
Figure 15. Clock Control—Si570 Tab