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Chapter 3: 10GBASE-R PHY IP Core 3–7
Parameterizing the 10GBASE-R PHY
November 2012 Altera Corporation Altera Transceiver PHY IP Core
User Guide
Parameterizing the 10GBASE-R PHY
The 10GBASE-R PHY IP Core is available for the Arria V, Arria V GZ, Stratix IV, or
Stratix V device families. Complete the following steps to configure the 10GBASE-R
PHY IP Core in the MegaWizard Plug-In Manager:
1. For Which device family will you be using?, select Arria V, Arria V GZ,
Stratix IV, or Stratix V from the list.
2. Click Installed Plug-Ins > Interfaces > Ethernet> 10GBASE-R PHY v12.1.
3. Use the tabs on the MegaWizard Plug-In Manager to select the options required
for the protocol.
4. Refer to the following topics to learn more about the parameters:
a. General Option Parameters
b. Analog Parameters
5. Click Finish to generate your parameterized 10GBASE-R PHY IP Core.
General Option Parameters
This section describes the 10GBASE-R PHY parameters, which you can set using the
MegaWizard Plug-In Manager. Table 3–8 lists the settings available on the General
Options tab.
Table 3–8. General Options (Part 1 of 2)
Name Value Description
General Options
Device family
Arria V
Arria V GZ
Stratix IV GT
Stratix V
Specifies the target device.
Number of channels
1
32
The total number of 10GBASE-R PHY channels.
Mode of operation
Duplex
TX only
RX only
Arria V and Stratix V devices allow duplex, TX, or RX mode.
Stratix IV GT devices only support duplex mode.
PLL type
CMU
ATX
For Arria V GZ, Stratix IV, and Stratix V devices:
You can select either the CMU or ATX PLL. The CMU PLL has a larger
frequency range than the ATX PLL. The ATX PLL is designed to
improve jitter performance and achieves lower channel-to-channel
skew; however, it supports a narrower range of data rates and
reference clock frequencies. Another advantage of the ATX PLL is
that it does not use a transceiver channel, while the CMU PLL does.
Because the CMU PLL is more versatile, it is specified as the default
setting. An informational message displays in the message pane
telling you whether the chosen settings for Data rate and Input clock
frequency are legal for the CMU PLL, or for both the CMU and ATX
PLLs.
Altera recommends the ATX PLL for data rates <= 10 Gbps.
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