Intel Arria 10 User Manual page 142

Name
PREPREVAL
INITMAINVAL Init VOD
tap Value
INITPOSTVAL Init Post
tap Value
INITPREVAL Init Pre tap
Value
2.6.3.4.5. Speed Detection Parameters
Selecting the speed detection option gives the PHY the ability to detect to link partners
that support 1G/10GbE but have disabled Auto-Negotiation. During Auto-Negotiation,
if AN cannot detect Differential Manchester Encoding (DME) pages from a link partner,
the Sequencer reconfigures to 1GbE and 10GbE modes (Speed/Parallel detection) until
it detects a valid 1G or 10GbE pattern.
Table 113. Speed Detection
Parameter Name
Enable automatic speed
detection
Avalon-MM clock frequency
Link fail inhibit time for
10Gb Ethernet
Link fail inhibit time for
1Gb Ethernet
Enable PCS-Mode port
® ®
Intel Arria 10 Transceiver PHY User Guide
142
Value
Specifies the preset Pre-tap value. The default value is 0.
0-15
Specifies the initial V
0-31
command of the link training protocol, defined in Clause
72.6.10.2.3.2 of IEEE Std 802.3ap–2007. The default value is 25.
Specifies the initial Post-tap value. The default value is 13.
0-38
Specifies the initial Pre-tap value. The default value is 3.
0-15
Options
On When you turn this option On, the core includes the Sequencer
block that sends reconfiguration requests to detect 1G or 10GbE
Off
when the Auto Negotiation block is not able to detect AN data.
Specifies the clock frequency for
100-162 MHz
Specifies the time before
504 ms
link fails if the
link_status
more information, refer to "Clause 73 Auto Negotiation for
Backplane Ethernet" in IEEE Std 802.3ap-2007.
Specifies the time before
40-50 ms
link fails if the
link_status
On Enables or disables the PCS-Mode port.
Off
2. Implementing Protocols in Arria 10 Transceivers
Description
value. This value is set by the Initialize
OD
Description
phy_mgmt_clk
link_status
link_fail_inhibit_time
is set to OK. The legal range is 500-510 ms. For
link_status
link_fail_inhibit_time
is set to OK. The legal range is 40-50 ms.
UG-01143 | 2018.06.15
.
is set to FAIL or OK. A
has expired before
is set to FAIL or OK . A
has expired before