HC4GX15 Datasheet, PDF (471/668 Pages) Altera Corporation – HardCopy IV Device Handbook

Chapter 2: HardCopy IV GX Dynamic Reconfiguration
2–13
Quartus II MegaWizard Plug-In Manager Interfaces to Support Dynamic Reconfiguration
Table 2–2. Dynamic Reconfiguration Controller Port List (ALTGX_RECONFIG Instance) (Part 3 of 9)
Port Name
logical_channel_address
[8:0]
rx_tx_duplex_sel[1:0]
Input/
Output
Input
Input
Description
The logical_channel_address port is enabled by the
ALTGX_RECONFIG MegaWizard Plug-In Manager when you enable
the Use 'logical_channel_address' port for Analog controls
reconfiguration option in the Analog controls screen. The width of
the logical_channel_address port depends on the value
you set in the What is the number of channels controlled by the
reconfig controller? option in the Reconfiguration settings screen.
The logical_channel_address port can be enabled only
when the number of channels controlled by the dynamic
reconfiguration controller is more than one.
For more information, refer to “Logical Channel Addressing of
Regular Transceiver Channels” on page 2–23 and “Logical Channel
Addressing of PMA-Only Channels” on page 2–32.
This is a 2-bit wide signal. You can select this in the Error
checks/Data rate switch screen.
The advantage of using this optional port is that it allows you to
reconfigure only the transmitter portion of a channel, even if the
channel configuration is duplex.
For a setting of:
■ rx_tx_duplex_sel[1:0] = 2'b00 => the transmitter and
receiver portion of the channel is reconfigured.
■ rx_tx_duplex_sel[1:0] = 2'b01 => the receiver portion
of the channel is reconfigured.
■ rx_tx_duplex_sel[1:0] = 2'b10 => the transmitter
portion of the channel is reconfigured.
© June 2009 Altera Corporation
HardCopy IV Device Handbook, Volume 3