IPR-PCIE/4 Altera, IPR-PCIE/4 Datasheet - Page 184
IPR-PCIE/4
Manufacturer Part Number
IPR-PCIE/4
Description
IP CORE Renewal Of IP-PCIE/4
Manufacturer
Altera
Type
MegaCorer
Specifications of IPR-PCIE/4
Software Application
IP CORE, Interface And Protocols, PCI
Supported Families
Arria GX, Cyclone II, HardCopy II, Stratix II
Core Architecture
FPGA
Core Sub-architecture
Arria, Cyclone, Stratix
Rohs Compliant
NA
Function
PCI Express Compiler, x4 Link Width
License
Renewal License
Lead Free Status / RoHS Status
na
Lead Free Status / RoHS Status
na
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9–2
PCI Express Compiler User Guide
ECRC on the TX Path
Table 9–1
Table 9–1. ECRC Operation on RX Path
You can turn on the Implement ECRC generation option on the
Parameters” on page
turn on Implement ECRC forwarding, the ECRC value is forwarded with the
transaction layer packet.
forwarding. In this table, if TD is 1, the TLP includes an ECRC. TD is the TL digest bit of
the TL packet described in
Formats.
Table 9–2. ECRC Generation and Forwarding on TX Path
Notes to
(1) The ECRC Check Enable is in the configuration space advanced error capabilities and control register.
Notes to
(1) All unspecified cases are unsupported and the behavior of the IP core is unknown.
(2) The ECRC Generation Enable is in the configuration space advanced error capabilities and control register.
Forwarding
Forwarding
ECRC
ECRC
Yes
Yes
No
No
Table
Table
summarizes the RX ECRC functionality for all possible conditions.
9–1:
9–2:
Generation
Enable
Enable
Check
ECRC
ECRC
Yes
Yes
Yes
Yes
No
No
No
No
(1)
(2)
3–7. When this option is on, TX path generates ECRC. If you
Table 9–2
TD=0, without ECRC
TD=1, without ECRC
TD=0, without ECRC
TD=1, without ECRC
TD=0, without ECRC
TD=1, with ECRC
TD=0, without ECRC
TD=1, with ECRC
TLP on Application
Appendix A, Transaction Layer Packet (TLP) Header
Status
ECRC
none
good
none
good
none
good
none
good
bad
bad
bad
bad
summarizes the TX ECRC generation and
Error
Yes
Yes
No
No
No
No
No
No
No
No
No
No
Forwarded
Forwarded without its ECRC
Forwarded without its ECRC
Forwarded
Forwarded without its ECRC
Not forwarded
Forwarded
Forwarded with its ECRC
Forwarded with its ECRC
Forwarded
Forwarded with its ECRC
Not forwarded
TD=0, without ECRC
TD=0, without ECRC
TD=1, with ECRC
TD=1, with ECRC
TD=0, without ECRC
TD=1, with ECRC
TD=0, without ECRC
TD=1, with ECRC
(Note 1)
TLP on Link
TLP Forward to Application
December 2010 Altera Corporation
Chapter 9: Optional Features
“Capabilities
ECRC is generated
Core forwards the
ECRC
Comments
ECRC
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