HC4GX15 Datasheet, PDF (475/668 Pages) Altera Corporation – HardCopy IV Device Handbook

Chapter 2: HardCopy IV GX Dynamic Reconfiguration
2–17
Quartus II MegaWizard Plug-In Manager Interfaces to Support Dynamic Reconfiguration
Table 2–2. Dynamic Reconfiguration Controller Port List (ALTGX_RECONFIG Instance) (Part 7 of 9)
Port Name
rx_eqdcgain[2..0] (1), (2)
tx_vodctrl_out[2..0]
tx_preemp_0t_out[4..0]
tx_preemp_1t_out[4..0]
tx_preemp_2t_out[4..0]
rx_eqctrl_out[3..0]
rx_eqdcgain_out[2..0]
Input/
Output
Input
Output
Output
Output
Output
Output
Output
Description
This is an optional equalizer DC gain write control.
The width of this signal is fixed to 3 bits if you enable either the Use
'logical_channel_address' port for Analog controls
reconfiguration option or the Use same control signal for all the
channels option in the Analog controls screen. Otherwise, the
width of this signal is 3 bits per channel.
For more information, refer to “Dynamically Reconfiguring PMA
Controls” on page 2–53.
The following values are the legal settings allowed for this signal:
3’b000 => 0 dB
3’b001 => 3 dB
3’b010 => 6 dB
3’b011 => 9 dB
3’b100 => 12 dB
All other values => N/A
For more information, refer to the Programmable Equalization and
DC Gain section of the HardCopy IV GX Transceiver Architecture
chapter in volume 3 of the HardCopy IV Device Handbook.
This is an optional transmit V_OD read control signal. This signal
reads out the value written into the V_OD control register. The width
of this output signal depends on the number of channels controlled
by the dynamic reconfiguration controller.
This is an optional pre-tap, pre-emphasis read control signal. This
signal reads out the value written by its input control signal. The
width of this output signal depends on the number of channels
controlled by the dynamic reconfiguration controller.
This is an optional first post-tap, pre-emphasis read control signal.
This signal reads out the value written by its input control signal.
The width of this output signal depends on the number of channels
controlled by the dynamic reconfiguration controller.
This is an optional second post-tap pre-emphasis read control
signal. This signal reads out the value written by its input control
signal. The width of this output signal depends on the number of
channels controlled by the dynamic reconfiguration controller.
This is an optional read control signal to read the setting of
equalization setting of the ALTGX instance. The width of this output
signal depends on the number of channels controlled by the
dynamic reconfiguration controller.
This is an optional equalizer DC gain read control signal. This signal
reads out the settings of the ALTGX instance DC gain. The width of
this output signal depends on the number of channels controlled by
the dynamic reconfiguration controller.
© June 2009 Altera Corporation
HardCopy IV Device Handbook, Volume 3