HC4GX15 Datasheet, PDF (495/668 Pages) Altera Corporation – HardCopy IV Device Handbook

Chapter 2: HardCopy IV GX Dynamic Reconfiguration
2–37
Quartus II MegaWizard Plug-In Manager Interfaces to Support Dynamic Reconfiguration
Table 2–16 shows the ALTGX and ALTGX_RECONFIG settings for Instances 1 and 2
in Cases 1 through 5.
Table 2–16. ALTGX and ALTGX_RECONFIG Settings for Instances 1 and 2 in Cases 1 through 5 (Part 1 of 2)
Example Scenario
ALTGX Instance 1
Settings
ALTGX Instance 2
Settings
ALTGX_RECONFIG
Instance 1 Settings
Case 1
For a block diagram of
the ALTGX instances
and the
ALTGX_RECONFIG
instance in this design,
refer to Figure 2–8 on
page 2–25.
■ One regular
transceiver channel.
■ Set the What is the
starting channel
number? option in
the Reconfig
screen to 0.
■ The logical channel
address of the first
channel is 0.
■ Three regular
transceiver
channels.
■ Set the What is the
starting channel
number? option in
the Reconfig
screen to 4.
■ The logical channel
address of the first
to third channels
are 4, 5, and 6,
respectively.
■ Determine the
highest logical
channel address (6)
for ALTGX instance 1.
■ Round it up to the
next multiple of 4.
■ Set the What is the
number of channels
controlled by the
controller? option in
the Reconfiguration
settings screen to 8.
Case 2
For a block diagram of
the ALTGX instances
and the
ALTGX_RECONFIG
instance in this design,
refer to Figure 2–9 on
page 2–27.
■ Six regular
transceiver
channels.
■ Set the What is the
starting channel
number? option in
the Reconfig
screen to 0.
■ The logical channel
address of the first
to sixth channels
are 0, 1, 2, 3, 4, and
5, respectively.
■ Three regular
transceiver
channels.
■ Set the What is the
starting channel
number? option in
the Reconfig
screen to 8.
■ The logical channel
address of the first
to third channels
are 8, 9, and 10,
respectively.
■ Determine the
highest logical
channel address (10).
■ Round it up to the
next multiple of 4.
■ Set the What is the
number of channels
controlled by the
controller? option in
the Reconfiguration
settings screen to 12.
Case 3
For a block diagram of
the ALTGX instances
and the
ALTGX_RECONFIG
instance in this design,
refer to Figure 2–10 on
page 2–29.
■ Six regular
transceiver
channels.
■ Set the What is the
starting channel
number? option in
the Reconfig
screen to 0.
■ The logical channel
address of the first
to sixth channels
are 0, 1, 2, 3, 4, and
5, respectively.
■ Six regular
transceiver
channels.
■ Set the What is the
starting channel
number? option in
the Reconfig
screen to 8.
■ The logical channel
address of the first
to sixth channels
are 8, 9, 10, 11, 12,
and 13,
respectively.
■ Determine the
highest logical
channel address (13).
■ Round it up to the
next multiple of 4.
■ Set the What is the
number of channels
controlled by the
controller? option in
the Reconfiguration
settings screen to 16.
ALTGX_RECONFIG
Instance 2 Settings
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© June 2009 Altera Corporation
HardCopy IV Device Handbook, Volume 3