KCU1250 IBERT Getting Started Guide
12
UG1061 (v2017.4) December 20, 2017
www.xilinx.com
Chapter 1:
KCU1250 IBERT Getting Started Guide
Starting the SuperClock-2 Module
The SuperClock-2 module features two clock-source components:
• Always-on Si570 crystal oscillator
• Si5368 jitter-attenuating clock multiplier
Outputs from either source can be used to drive the transceiver reference clocks.
To start the SuperClock-2 module:
1. Configure the SuperClock-2 module using the Xilinx XC7Z010CLG225 Zynq-7000
AP SoC System Controller command line, which can be accessed through a serial
communication terminal connection using the enhanced communication port of the
Silicon Labs USB to Dual UART Bridge (
Figure 1-9
). Additional information about the
Silicon Labs USB-to-UART is available in
Silicon Labs CP210x USB-to-UART Installation
Guide
(UG1033)
[Ref 3]
.
Review the
KCU1250 Board User Guide
(UG1057)
[Ref 1]
for additional information about
the System Controller.
2. Set the System Controller configuration DIP switches (SW13) to the OFF position
(
Figure 1-10
). This disables configuration of the FPGA at power reset.
X-Ref Target - Figure 1-9
Figure 1-9:
Silicon Labs Enhanced COM PORT
X-Ref Target - Figure 1-10
Figure 1-10:
Configuration DIP Switch (SW13)
;
ENABLE
ADDR0
ADDR1
ADDR2
ADDR3
ON
;
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