Altera Arria V GX - Manual (Page 42)

6–20 Chapter 6: Board Test System
The Clock Control
Arria V GX Starter Kit November 2014 Altera Corporation
User Guide
The Clock Control communicates with the MAX V device on the board through the
JTAG bus. The Si571 programmable oscillator is connected to the MAX V device
through a 2-wire serial bus. Clock frequencies will return to the default values after
power cycling the board.
Figure 6–10 and Figure 6–11 shows both tabs of the Clock
Control.
Figure 6–10. The Clock Control - U4 Tab
Figure 6–11. The Clock Control - X1 Tab