Altera 40-Gbps Ethernet MAC and PHY MegaCore Function User Manual
Page 34
You can use the IP Catalog to generate an Altera transceiver reconfiguration controller.
• For Arria V GZ and Stratix V devices, select the Transceiver Reconfiguration Controller.
• For Stratix IV devices, select the
ALTGX_RECONFIG
transceiver reconfiguration block.
When you configure the Altera Transceiver Reconfiguration Controller, you must specify the number of
reconfiguration interfaces. The number of reconfiguration interfaces required for the 40GbE and 100GbE
IP cores depends on the IP core variation.
Table 2-4: Number of Reconfiguration Interfaces
Lists the number of reconfiguration interfaces you should specify for the Altera Transceiver Reconfiguration
Controller for your Arria V GZ or Stratix V 40-100GbE IP core that includes a PHY component.
PHY Configuration
RX Only
TX Only
Duplex
Standard 40GbE and
40GBASE-KR4
(4x10.3125 lanes)
4
8
8
100GbE (10x10.3125
lanes)
10
20
20
CAUI-4 (4x25.78125
lanes)
—
—
4x3
(9)
You can configure your reconfiguration controller with additional interfaces if your design connects with
multiple transceiver IP cores. You can leave other options at the default settings or modify them for your
preference.
You should connect the
reconfig_to_xcvr
and
reconfig_from_xcvr
ports of the 40-100GbE IP core to
the corresponding ports of the reconfiguration controller.
The CAUI–4 variations have four reconfiguration channels, numbered consecutively from
reconfig_to_xcvr0
and
reconfig_from_xcvr0
to
reconfig_to_xcvr3
and
reconfig_from_xcvr3
.
The CAUI–4 reconfiguration channels must be connected to the four reconfiguration controller
groupings. The reconfiguration controller groupings include
ch0_2_from_xcvr
,
ch3_5_from_xcvr
,
ch6_8_from_xcvr
, and
ch9_11_from_xcvr
.
You must also connect the
mgmt_clk_clk
and
mgmt_rst_reset
ports of the Altera Transceiver Reconfi‐
guration Controller. The
mgmt_clk_clk
port must have a clock setting in the range of 100–125MHz; this
setting can be shared with the 40-100GbE IP core
clk_status
port. The
mgmt_rst_reset
port must be
deasserted before, or deasserted simultaneously with, the 40-100GbE IP core
pma_arst_ST
port.
(9)
The CAUI-4 configuration requires 12 interfaces split into four groups of three; the interface grouping
should be set to 3, 3, 3, 3.
2-12
External Transceiver Reconfiguration Controller
UG-01088
2014.12.15
Altera Corporation
Getting Started