HC4GX15 Datasheet, PDF (463/668 Pages) Altera Corporation – HardCopy IV Device Handbook

Chapter 2: HardCopy IV GX Dynamic Reconfiguration
2–5
Quartus II MegaWizard Plug-In Manager Interfaces to Support Dynamic Reconfiguration
Based on the value you set at the reconfig_mode_sel[2:0] signal, the respective
dynamic reconfiguration mode is enabled. The reconfig_mode_sel[2:0] signal is
3 bits wide.
Table 2–1 shows the various dynamic reconfiguration modes supported by the regular
transceiver channels and CMU channels, and the value that you need to set at the
reconfig_mode_sel[2:0] input port to activate one of the selected dynamic
reconfiguration modes.
Table 2–1. Dynamic Reconfiguration Modes Supported by Regular Transceiver Channels and CMU Channels
Dynamic Reconfiguration Mode
PMA Controls Reconfiguration
Data Rate Division in TX
Regular Transceiver Channels
Yes
Yes
CMU Channels
Not Supported
Not Supported
reconfig_mode_sel[2:0] (1)
3’b000
3’b011
Channel and TX PLL select/reconfig
CMU PLL Reconfiguration
Yes
Channel and CMU PLL
Yes
Reconfiguration
Channel Reconfiguration with TX
Yes
PLL Select
Not Supported
Not Supported
Note to Table 2–1:
(1) reconfig_mode_sel [2:0] = 3'b001 and 3'b010 are not supported.
Not Supported
Not Supported
Not Supported
Not Supported
3’b100
3’b101
3’b110
3’b111
1 The reconfig_mode_sel[2:0] input is available when you select more than one
dynamic reconfiguration mode in the ALTGX_RECONFIG MegaWizard Plug-In
Manager. The default value for this reconfig_mode_sel[2:0] input is 000.
Quartus II MegaWizard Plug-In Manager Interfaces to Support Dynamic
Reconfiguration
The HardCopy IV GX device provides two MegaWizard Plug-In Manager interfaces
to support dynamic reconfiguration: ALTGX and ALTGX_RECONFIG.
This section provides information about the dynamic reconfiguration options
available in the ALTGX and ALTGX_RECONFIG MegaWizard Plug-In Managers.
ALTGX MegaWizard Plug-In Manager
The ALTGX MegaWizard Plug-In Manager provides the following options in the
Reconfig screen to enable the various dynamic reconfiguration modes (shown in
Figure 2–1):
■ The Analog controls (VOD, Pre-emphasis, and Manual Equalization) option for
the PMA controls reconfiguration mode.
■ The Offset cancellation for Receiver channels option is enabled by default and
grayed out for the offset cancellation mode.
■ The Enable Channel and Transmitter PLL Reconfiguration option for the Data
Rate Division in TX, CMU PLL reconfiguration, Channel and CMU PLL
reconfiguration, and Channel reconfiguration with TX PLL select modes.
© June 2009 Altera Corporation
HardCopy IV Device Handbook, Volume 3