Variation file parameters, Variation file parameters –7, Variation file – Altera PCI Compiler User Manual

Page 65

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Altera Corporation

User Guide Version 11.1

2–7

October 2011

Parameter Settings

Variation File
Parameters

If you do not want to use the IP Toolbench Parameterize - PCI Compiler
wizard, you can specify Altera

PCI MegaCore function parameters

directly in the hardware description language (HDL) or graphic design
files.

Table 2–1

provides parameter names and descriptions.

Table 2–1. PCI MegaCore Function Parameters (Part 1 of 5)

Name

Format

Default Value

Description

DEVICE_ID

Hexadecimal

H"0004"

Device ID register. This parameter is a
16-bit hexadecimal value that sets the
device ID register in the configuration
space. Any value can be entered for this
parameter.

CLASS_CODE

Hexadecimal

H"FF0000"

Class code register. This parameter is a
24-bit hexadecimal value that sets the class
code register in the configuration space.
The value entered for this parameter must
be a valid PCI SIG-assigned class code
register value.

MAX_LATENCY (1)

Hexadecimal

H"00"

Maximum latency register. This parameter
is an 8-bit hexadecimal value that sets the
maximum latency register in the
configuration space. This parameter must
be set according to the guidelines in the PCI
specification.

MIN_GRANT (1)

Hexadecimal

H"00"

Minimum grant register. This parameter is
an 8-bit hexadecimal value that sets the
minimum grant register in the PCI
configuration space. This parameter must
be set according to the guidelines in the PCI
specification.

REVISION_ID

Hexadecimal

H"01"

Revision ID register. This parameter is an
8-bit hexadecimal value that sets the
revision ID register in the PCI configuration
space.

SUBSYSTEM_ID

Hexadecimal

H"0000"

Subsystem ID register. This parameter is a
16-bit hexadecimal value that sets the
subsystem ID register in the PCI
configuration space. Any value can be
entered for this parameter.

SUBSYSTEM_VEND_ID

Hexadecimal

H"0000"

Subsystem vendor ID register. This
parameter is a 16-bit hexadecimal value
that sets the subsystem vendor ID register
in the PCI configuration space. The value
for this parameter must be a valid PCI
SIG-assigned vendor ID number.

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