EP4CE30F29C7N Datasheet, PDF (401/488 Pages) Altera Corporation – Cyclone IV Device Handbook, Volume 1

Chapter 3: Cyclone IV Dynamic Reconfiguration
3–3
Dynamic Reconfiguration Controller Architecture
Figure 3–1 shows a conceptual view of the dynamic reconfiguration controller
architecture. For a detailed description of the inputs and outputs of the
ALTGX_RECONFIG instance, refer to “Error Indication During Dynamic
Reconfiguration” on page 3–36.
Figure 3–1. Dynamic Reconfiguration Controller
ALTGX_RECONFIG MegaWizard Plug-In Manager
ALTGX_RECONFIG Instance
(Dynamic Reconfiguration Controller)
ALTGX MegaWizard
Plug-In Manager
ALTGX Instances
reconfig_clk
read
write_all
PMA control ports (1)
reset_reconfig_address
reconfig_data[15..0]
reconfig_reset
logical_channel_address[n..0]
rx_tx_duplex_sel[1..0]
Analog controls
reconfig logic
Channel
reconfig
logic
Offset
Cancellation
control logic
Address
Translation
addr
data
Parallel
to
Serial
Converter
reconfig_fromgxb[n..0]
reconfig_togxb[3..0]
data valid
busy
error
reconfig_address_out[5..0]
reconfig_address_en
channel_reconfig_done
reconfig_mode_sel[2..0]
Note to Figure 3–1:
(1) The PMA control ports consist of the V_OD, pre-emphasis, DC gain, and manual equalization controls.
1 Only PMA reconfiguration mode supports manual equalization controls.
1 You can use one ALTGX_RECONFIG instance to control multiple transceiver blocks.
However, you cannot use multiple ALTGX_RECONFIG instances to control one
transceiver block.
November 2011 Altera Corporation
Cyclone IV Device Handbook,
Volume 2