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Altera Low Latency 40-Gbps Ethernet MAC and PHY MegaCore Function User Manual

Page 119

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Address

Name

Bit

Description

HW

Reset

Value

Access

RCLR_

ERRBLK_

CNT, Lane 0

12

Writing a 1 resets the error block

counters.Writing a 0 causes counting to resume.
Each lane has a 32-bit corrected error block

counter and a 32-bit uncorrected error block

counter in the Arria 10 device registers. Refer to

Clause 74.8.4.1 and Clause 74.8.4.2 of IEEE Std

802.3ap-2007.
For Lane 0, the corrected error block counter is

in the Arria 10 device registers you access

through the Arria 10 dynamic reconfiguration

interface at offsets 0xDC to 0xDF:

blkcnt_

corr[31:0]

is in {0xDF[7:0],0xDE[7:0],

0xDD[7:0],0xDC[7:0]}.
For Lane 0, the uncorrected error block counter

is in the Arria 10 device registers you access

through the Arria 10 dynamic reconfiguration

interface at offsets 0xE0 to 0xE3:

blkcnt_

uncorr[31:0]

is in {0xE3[7:0],0xE2[7:0],

0xE1[7:0],0xE0[7:0]}.

RW

Reserved

[31:13

]

Reserved

0x0B5

Register 0xB2 refers to Lane 0. This register is the equivalent of register 0xB2 for

Lane 1. The relevant FEC error Arria 10 device registers for Lane 1 are at 0x4BD

through 0x4E3 (additional offset of 0x400).

RW

0x0B8

This register is the equivalent of register 0xB2 for Lane 2. The relevant FEC error

Arria 10 device registers for Lane 2 are at 0x8BD through 0x8E3 (additional offset

of 0x800 compared to the Lane 0 device registers).

RW

0x0BB

This register is the equivalent of register 0xB2 for Lane 3. The relevant FEC error

Arria 10 device registers for Lane 3 are at 0xCBD through 0xCE3 (additional offset

of 0xC00 compared to the Lane 0 device registers).

RW

0x0C0

Override AN

Channel

Enable

[6]

Overrides the auto-negotiation master channel

that you set with the Auto-Negotiation Master

parameter, setting the new master channel

according to the value in register 0xCC[3:0].
While 0x0C0[6] has the value of 1, the channel

encoded in 0xCC[3:0] is the master channel.

While 0xC0[6] has the value of 0, the master

channel is the channel that you set with the

Auto-Negotiation Master parameter.

1'b0

RW

0x0C2

KR4 AN Link

Ready [5:0]

[17:12

]

Provides a one-hot encoding of an_receive_idle

= true and link status for the supported link as

described in Clause 73.10.1. The following

encodings are defined:

6'b001

000

RO

3-74

LL 40GBASE-KR4 Registers

UG-01172

2015.05.04

Altera Corporation

Functional Description

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