HC4GX15 Datasheet, PDF (481/668 Pages) Altera Corporation – HardCopy IV Device Handbook

Chapter 2: HardCopy IV GX Dynamic Reconfiguration
2–23
Quartus II MegaWizard Plug-In Manager Interfaces to Support Dynamic Reconfiguration
Logical Channel Addressing
When you configure an ALTGX instance in Basic (PMA Direct) functional mode, all
the channels within the ALTGX instance are PMA-only channels. Depending on the
pins you assign to these PMA-only channels, they can either be:
■ Regular transceiver channels with PMA-only
or
■ CMU channels
However, when you configure an ALTGX instance with both the PCS and PMA
blocks, all the channels within the ALTGX instance can only be regular transceiver
channels.
The following sections describe the concept of logical channel addressing for regular
transceiver channels, PMA-only channels, and a combination of PMA-only channels
and regular transceiver channels that are not in Basic (PMA direct) functional mode.
Logical Channel Addressing of Regular Transceiver Channels
This section describes how to set the What is the starting channel number? option
using five different case scenarios for the regular transceiver channels.
Figure 2–7 shows the What is the starting channel number? option in the Reconfig
screen of the ALTGX MegaWizard Plug-In Manager.
Figure 2–7. What is the Starting Channel Number? Option in the ALTGX MegaWizard Plug-In Manager
© June 2009 Altera Corporation
HardCopy IV Device Handbook, Volume 3