Chapter 3. Parameter Settings; System Settings - Altera Cyclone V User Manual

November 2011
1101
This chapter describes the parameters which you can set using the MegaWizard
Plug-In Manager or Qsys design flow to instantiate a Cyclone V Hard IP for PCI
Express IP core. The appearance of the GUI is identical for the two design flows.
1
In the following tables, hexadecimal addresses in
information in the

System Settings

The first group of settings defines the overall system.
settings.
Table 3–1. System Settings for PCI Express (Part 1 of 3)
Parameter
Number of Lanes
Lane Rate
Port type
Application Interface
November 2011 Altera Corporation
"Register Descriptions"
Value
×1, ×4 Specifies the maximum number of lanes supported.
Gen1 (2.5 Gbps) Specifies the maximum data rate at which the link can operate.
Specifies the function of the port. Altera recommends Native Endpoint
for all new Endpoint designs. Select Legacy Endpoint only when you
require I/O transaction support for compatibility.
Native Endpoint
Root Port
The Endpoint stores parameters in the Type 0 Configuration Space which
Legacy Endpoint
is outlined in
the Type 1 Configuration Space which is outlined in
page 6–2.
Specifies the interface between the PCI Express Transaction Layer and
the Application Layer. Refer to
64-bit Avalon-ST
comprehensive list of available link width, interface width, and frequency
combinations.
3. Parameter Settings
green are links to additional
chapter.
Table 3–1
Description
Table 6–2 on page 6–2. The Root Port stores parameters in
Table 7–1 on page 7–3
describes these
Table 6–3 on
for a
Cyclone V Hard IP for PCI Express