Altera UG-01080 Guía de usuario Pagina 55

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Chapter 4: Backplane Ethernet 10GBASE-KR PHY IP Core 4–7
Analog Parameters
November 2012 Altera CorporationAltera Transceiver PHY IP Core
User Guide
Analog Parameters
Refer to the appropriate link for a description of analog parameters that you can set
using the Quartus II Assignment Editor, the Pin Planner, or through the Quartus II
Settings File (.qsf).
Analog Settings for Arria V GZ Devices
Analog Settings for Stratix V Devices
Link fail inhibit t time for
10Gb Ethernet
504 ms
Specifies the time before
link_status
is set to
FAIL
or
OK
. A link fails
if the
link_fail_inhibit_time
has expired before
link_status
is
set to
OK
. For 10GBASE-KR the legal range is 500–510 ms. For more
information, refer to “Clause 73 Auto-Negotiation for Backplane
Ethernet” in IEEE Std 802.3ap-2007.
Link fail inhibit t time for 1Gb
Ethernet
40–50 ms
Specifies the time before
link_status
is set to
FAIL
or
OK
. A link fails
if the
link_fail_inhibit_time
has expired before
link_status
is
set to
OK
. For 10GBASE-KR the legal range is 40–50 ms. For more
information, refer to “Clause 73 Auto-Negotiation for Backplane
Ethernet” in IEEE Std 802.3ap-2007.
Table 4–8. Speed Detection (Part 2 of 2)
Parameter Name Options Description
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