Link capabilities, Link capabilities -11 – Altera Arria 10 Avalon-ST User Manual

Page 54

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Parameter

Value

Default Value

Description

Enable

ECRC

checking

On/Off

Off

When On, enables ECRC checking. Sets the read-only

value of the ECRC check capable bit in the

Advanced

Error Capabilities and Control Register

. This

parameter requires you to enable the AER capability.

Enable

ECRC

generation

On/Off

Off

When On, enables ECRC generation capability. Sets the

read-only value of the ECRC generation capable bit in

the

Advanced Error Capabilities and Control

Register

. This parameter requires you to enable the

AER capability.

Enable

ECRC

forwarding

on the

Avalon-ST

interface

On/Off

Off

When On, enables ECRC forwarding to the Application

Layer. On the Avalon-ST RX path, the incoming TLP

contains the ECRC dword

(1)

and the

TD

bit is set if an

ECRC exists. On the transmit the TLP from the Applica‐

tion Layer must contain the ECRC dword and have the

TD

bit set.

Track RX

completion

buffer

overflow on

the Avalon-

ST interface

On/Off

Off

When On, the core includes the

rxfx_cplbuf_ovf

output status signal to track the RX posted completion

buffer overflow status.

Note:
1. Throughout this user guide, the terms word, dword and qword have the same meaning that they have

in the PCI Express Base Specification. A word is 16 bits, a dword is 32 bits, and a qword is 64 bits.

Link Capabilities

Table 4-8: Link Capabilities

Parameter

Value

Description

Link port

number

0x01

Sets the read-only value of the port number field in the

Link

Capabilities

register.

UG-01145_avst

2014.08.18

Link Capabilities

4-11

Parameter Settings

Altera Corporation

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