HC4GX15 Datasheet, PDF (486/668 Pages) Altera Corporation – HardCopy IV Device Handbook

2–28
Chapter 2: HardCopy IV GX Dynamic Reconfiguration
Quartus II MegaWizard Plug-In Manager Interfaces to Support Dynamic
Regular Transceiver Channels: Case 3
Table 2–8 shows an example scenario for Case 3.
Table 2–8. Example Scenarios for Logical Channel Addressing in ALTGX Instances for Case 3
Example Scenario
Case 3
Number of ALTGX Instances
Two ALTGX instances:
■ ALTGX instance 1 (6 channels)
■ ALTGX instance 2 (6 channels)
Number of ALTGX_RECONFIG
Instances
One ALTGX_RECONFIG instance
controlling both the ALTGX instances.
Table 2–9 shows the logical channel addressing of regular transceiver channels in
Case 3.
Table 2–9. Logical Channel Addressing of Regular Transceiver Channels for Case 3
ALTGX Instances
ALTGX_RECONFIG Instance
ALTGX MegaWizard Plug-In
Manager Setting
What is the number of
channels? in the General
screen
What is the starting channel
number? in the Reconfig
screen
ALTGX instance 1
6
Set this option to 0
The logical channel
addresses of the first to sixth
channels are 0, 1, 2, 3, 4,
and 5, respectively.
ALTGX instance 2
6
Because the starting channel
number increments in steps
of 4, you must set the
starting channel number of
the next ALTGX instance as a
multiple of 4. Therefore, set
this option to 8.
The logical channel
addresses of the first to third
channels are 8, 9, 10, 11, 12,
and 13, respectively.
ALTGX_RECONFIG instance
1:
Controls both ALTGX
instance 1 and ALTGX
instance 2.
For more information, refer
to Table 2–16 on page 2–37
for the ALTGX_RECONFIG
instance 1 settings.
HardCopy IV Device Handbook, Volume 3
© June 2009 Altera Corporation