Program The Clocks Sources - Xilinx KCU1250 10GBASE-KR User Manual

Program the Clocks Sources

The KCU1250 board uses the SuperClock-2 module to provides programmable, low-noise
and low-jitter clock sources for the KCU1250 board. See HW-CLK-101-SCLK2 SuperClock-2
Module User Guide (UG770)
To program the clock sources:
1. On the control computer, open the Tera Term Pro terminal program. Click Start > All
Programs > Tera Term > Tera Term.
2. In the New connection window, configure the settings as shown in
serial COM port associated with Silicon Labs Dual CP210x USB to UART Bridge: Enhanced COM Port.
Click OK.
X-Ref Target - Figure 3-3
3. On the control computer keyboard, press the Enter key. The Tera Term window will
display the SuperClock-2 configuration menu.
4. Set Programmable Clocks:
a. Select option 1 (Set Programmable Clocks): Type 1, and press Enter.
5. Set the Si570 frequency to 156.25 MHz:
a. Select option 1 (Set KCU1250 Si570 frequency): Type 1, and press Enter.
10GBASE-KR Ethernet TRD
UG1058 (v2017.1) April 19, 2017
[Ref 13] for more information.
Figure 3-3: Connect to Enhanced COM Port on Tera Term
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Chapter 3: Bringing Up the Design
Figure 3-3. Select the
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