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Chapter 5
Peripheral Reference Design
his chapter introduces TR10a-HL peripheral interface reference designs. It
mainly introduces Si5340 chip which is a programmable clock generator. We
provide two ways (Pure RTL IP and NIOS/Qsys System) respectively to show
how to control Si5340 to output desired frequencies, as well as how to control the fan
speed. The source codes and tool of these examples are all available on the System
CD.
5.1
Configure Si5340A/B in RTL
There are two Silicon Labs Si5340 clock generators on TR10a-HL FPGA board can
provide adjustable frequency reference clock (See
Figure 5-1
) for QSFP and QDRII
interfaces, etc. Each Si5340 clock generator can output four groups differential
frequencies from 100Hz ~ 712.5Mhz though I2C interface configuration. This chapter
will show you how to use FPGA RTL IP to configure each Si5340 PLL and generate
users desired output frequency to each peripheral. In the following instruction, the two
Si5340 chips will be named as Si5340A and Si5340B respectively.
Figure 5-1 Si5340 Clock Generators
T
Содержание TR10a-HL
Страница 1: ...1...
Страница 3: ...3...
Страница 71: ...71 Figure 5 14 Si5340A Demo Figure 5 15 Si5340B Demo...
Страница 82: ...82 Figure 6 3 Progress and Result Information for the QDRII Demonstration...
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Страница 111: ...111 Figure 8 5QSFP Transceiver Loopback Test in Progress Figure 8 6QSFP Transceiver Loopback Done...