HC4GX15 Datasheet, PDF (489/668 Pages) Altera Corporation – HardCopy IV Device Handbook

Chapter 2: HardCopy IV GX Dynamic Reconfiguration
2–31
Quartus II MegaWizard Plug-In Manager Interfaces to Support Dynamic Reconfiguration
Figure 2–11 shows the logical channel addresses of all the channels within ALTGX
instance 1 and ALTGX instance 2.
Figure 2–11. Block Diagram of the ALTGX Instances and ALTGX_RECONFIG Instances for Case 4 (Note 1)
ALTGX Instance 1
Five Channel Instance
The What is the starting channel number? option = 0
Set the What is the number of
channels controlled by the
(1)
reconfig controller? option = 8
Case 4
Channel 0
(logical_address_channel = 0)
Channel 1
(logical_address_channel = 1)
ALTGX_RECONFIG Instance 1
reconfig_fromgxb [33:0]
reconfig_togxb [3:0]
Channel 2
(logical_address_channel = 2)
Channel 3
(logical_address_channel = 3)
Channel 4
(logical_address_channel = 4)
Set the What is the number of
channels controlled by the
(1)
reconfig controller? option = 8
ALTGX_RECONFIG Instance 2
ALTGX Instance 2
Five Channel Instance
The What is the starting channel number? option = 0
Channel 0
(logical_address_channel = 0)
reconfig_fromgxb [33:0]
reconfig_togxb [3:0]
Channel 1
(logical_address_channel = 1)
Channel 2
(logical_address_channel = 2)
Channel 3
(logical_address_channel = 3)
Channel 4
(logical_address_channel = 4)
Note to Figure 2–11:
(1) For more information, refer to “Regular Transceiver Channels: Case 4” on page 2–30.
Regular Transceiver Channels: Case 5
In this example, you have only one ALTGX instance (ALTGX instance 1) and one
ALTGX_RECONFIG instance in the design:
■ ALTGX instance 1—The number of channels in this instance is 1
■ ALTGX .v or ALTGX.vhd is stamped five times in the design
© June 2009 Altera Corporation
HardCopy IV Device Handbook, Volume 3