HC4GX15 Datasheet, PDF (497/668 Pages) Altera Corporation – HardCopy IV Device Handbook

Chapter 2: HardCopy IV GX Dynamic Reconfiguration
2–39
Quartus II MegaWizard Plug-In Manager Interfaces to Support Dynamic Reconfiguration
Total Number of Channels Controlled by the ALTGX_RECONFIG Instance—PMA-Only
Channels
Consider the example scenario shown in Table 2–13 on page 2–33 to see how to set the
What is the number of channels controlled by the reconfig controller? option in the
ALTGX_RECONFIG MegaWizard Plug-In Manager for the same example scenario.
Table 2–17 shows the ALTGX and ALTGX_RECONFIG settings in Case 6.
Table 2–17. ALTGX and ALTGX_RECONFIG Settings for Instances 1 and 2 in Case 6
Example Scenario
Case 6
ALTGX Instance 1 Settings
■ Eight PMA-only channels.
■ Set the What is the starting
channel number? option in the
Reconfig screen to 0.
■ The logical channel address of
the first to eighth channels are
0, 4, 8, 12, 16, 20, 24, and 28,
respectively.
ALTGX Instance 2
Settings
—
ALTGX_RECONFIG Instance 1
Settings
■ Determine the highest logical
channel address (28).
■ 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 32.
Total Number of Channels Controlled by the ALTGX_RECONFIG Instance—PMA-Only
Channels and Regular Transceiver Channels that are Not in Basic (PMA Direct) Functional
Mode
Consider the example scenario shown in Table 2–14 on page 2–34 to set the What is
the number of channels controlled by the reconfig controller? option in the
ALTGX_RECONFIG MegaWizard Plug-In Manager.
Table 2–18 shows the ALTGX and ALTGX_RECONFIG settings for Instances 1 and 2
for Case 7.
Table 2–18. ALTGX and ALTGX_RECONFIG Settings for Instances 1 and 2 in Case 7
Example Scenario
Case 7
ALTGX Instance 1 Settings
ALTGX_RECONFIG Instance 1
ALTGX Instance 2 Settings
Settings
■ Five regular transceiver
channels that are not in
Basic (PMA direct)
functional mode.
■ Set the What is the starting
channel number? option in
the Reconfig screen to 0.
■ The logical channel address
of the first to fifth channels
are 0, 1, 2, 3, and 4,
respectively.
■ Four PMA-only channels.
■ Set the What is the starting
channel number? option in
the Reconfig screen to 8.
■ The logical channel address
of the first to fourth
channels are 8, 12, 16, and
20, respectively.
■ Determine the highest
logical channel address
(20).
■ 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 24.
© June 2009 Altera Corporation
HardCopy IV Device Handbook, Volume 3