Altera 40-Gbps Ethernet MAC and PHY MegaCore Function - Manual (Page 29)

Parameter Type Range Default
Setting
Parameter Description
Auto-Negotia‐
tion Master
String • Lane 0
• Lane 1
• Lane 2
• Lane 3
Lane 0 Selects the master channel for auto-negotiation.
Pause ability–
C0
Boolean • True
• False
True If this parameter is turned on, the IP core supports
symmetric pauses as defined in Annex 28B of Section
2 of IEEE Std 802.3–2008.
Pause ability–
C1
Boolean • True
• False
True If this parameter is turned on, the IP core supports
asymmetric pauses as defined in Annex 28B of
Section 2 of IEEE Std 802.3–2008.
Link Training: PMA Parameters
VMAXRULE Integer
0–63 60
Specifies the maximum V
OD
. The default value, 60,
represents 1200 mV.
VMINRULE Integer
0–63 9
Specifies the minimum V
OD
. The default value, 9,
represents 165 mV.
VODMINRULE Integer
0–63 24
Specifies the minimum V
OD
for the first tap. The
default value, 24, represents 440 mV.
VPOSTRULE Integer
0–31 31
Specifies the maximum value that the internal
algorithm for pre-emphasis will ever test in
determining the optimum post-tap setting.
VPRERULE Integer
0–15 15
Specifies the maximum value that the internal
algorithm for pre-emphasis will ever test in
determining the optimum pre-tap setting.
PREMAINVAL Integer
0–63 60
Specifies the Preset V
OD
value. This value is set by the
Preset command of the link training protocol,
defined in Clause 72.6.10.2.3.1 of IEEE Std 802.3ap–
2007.
PREPOSTVAL Integer
0–31 0
Specifies the preset Post-tap value.
PREPREVAL Integer
0–15 0
Specifies the preset Pre-tap value.
INITMAINVAL Integer
0–63 52
Specifies the initial V
OD
value. This value is set by the
Initialize command of the link training protocol,
defined in Clause 72.6.10.2.3.2 of IEEE Std 802.3ap–
2007.
INITPOSTVAL Integer
0–31 30
Specifies the initial Post-tap value.
UG-01088
2014.12.15
IP Core Parameters 2-7
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