EP4CE30F29C7N Datasheet, PDF (411/488 Pages) Altera Corporation – Cyclone IV Device Handbook, Volume 1

Chapter 3: Cyclone IV Dynamic Reconfiguration
Dynamic Reconfiguration Modes
3–13
Table 3–3. Cyclone IV GX Supported Dynamic Reconfiguration Mode (Part 2 of 2)
Operational Mode
Quartus II Instances
Dynamic Reconfiguration
Supported Mode
Channel Reconfiguration
Transmitter
Only
Receiver
Only
Transmitter
and
Receiver
Only
ALTGX
.mif
ALTGX_ ALTPLL_ Requirements
RECONFIG RECONFIG
Channel Interface
v
v
v
v
v
—
v
Data Rate Division in
Receiver Channel
PLL Reconfiguration
—
v
v
v
v
—
v
v
v
v
v
—
v
v
The following modes are available for dynamically reconfiguring the Cyclone IV
transceivers:
■ “PMA Controls Reconfiguration Mode” on page 3–13
■ “Transceiver Channel Reconfiguration Mode” on page 3–21
■ Channel interface (.mif based)
■ Data rate division in receiver channel (.mif based)
The following sections describe each of these modes in detail.
The following modes are unsupported for dynamic reconfiguration:
■ Dynamically enable/disable PRBS or BIST
■ Switch between a receiver-only channel and a transmitter-only channel
■ Switch between a ×1 mode to a bonded ×4 mode
PMA Controls Reconfiguration Mode
You can dynamically reconfigure the following PMA controls for all supported
transceiver configurations channels as configured in the ALTGX instances:
■ Pre-emphasis settings
■ Equalization settings (channel reconfiguration mode does not support
equalization settings)
■ DC gain settings
■ V_OD settings
You can use the analog reconfiguration feature to dynamically reconfigure the
transceivers channels setting in either the transmitter or the receivers in the PMA
blocks. You can update the PMA controls on-the-fly based on the desired input. You
can perform both read and write transaction separately for this analog reconfiguration
mode.
November 2011 Altera Corporation
Cyclone IV Device Handbook,
Volume 2