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Chapter 7: Interlaken PHY IP Core 7–3
General Parameters
November 2012 Altera Corporation Altera Transceiver PHY IP Core
User Guide
5. Click Finish to generate your parameterized Interlaken PHY IP Core.
General Parameters
Table 72 describes the parameters that you can set on the General tab.
Table 7–2. Interlaken PHY General Options (Part 1 of 2)
Parameter Value Description
Device family
Arria V GZ
Stratix V
Specifies the device family.
Datapath mode Duplex, RX, TX Specifies the mode of operation as Duplex, RX, or TX mode.
Lane rate
3125 Mbps
5000 Mbps
6250 Mbps
6375 Mbps
10312.5 Mbps
12500 Mbps
Custom
Specifies the lane data rate. The Input clock frequency and Base
data rate parameters update automatically based on the Lane rate
you specify.
Custom, user-defined, lane data rates are now supported.
However, the you must choose a lane data rate that results in a
standard board oscillator reference clock frequency to drive the
pll_ref_clk
and meet jitter requirements. Choosing a lane data
rate that deviates from standard reference clock frequencies may
result in custom board oscillator clock frequencies which may be
prohibitively expensive or unavailable.
Number of lanes
1–24
Specifies the number of lanes in a link over which data is striped.
Metaframe length in
words
5–8191
Specifies the number of words in a metaframe. The default value
is 2048.
Although 5 –8191 words are valid metaframe length values, the
current Interlaken PHY IP Core implementation requires a
minimum of 128 Metaframe length for good, stable performance.
In simulation, Altera recommends that you use a smaller
metaframe length to reduce simulation times.
Input clock frequency
Lane rate/<n>
Lane rate/80
Lane rate/64
Lane rate/50
Lane rate/40
Lane rate/32
Lane rate/25
Lane rate/20
Lane rate/16
Lane rate/12.5
Lane rate/10
Lane rate/8
Specifies the frequency of the input reference clock. The default
value for the Input clock frequency is
the Lane rate /20. Many
reference clock frequencies are available.
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