Reconfiguration Block
The Reconfiguration Block performs Avalon-MM writes to the PHY for both PCS and
PMA reconfiguration. The Avalon-MM master accepts requests from the PMA or PCS
controller. It performs the Read-Modify-Write or Write commands on the Avalon-MM
interface. The PCS controller receives rate change requests from the Sequencer and
translates them to a series of Read-Modify-Write or Write commands to the PMA and
PCS.
Eight compile-time configuration modes are supported. The configuration modes
include one set of four with reference clock at 322 MHz and one set of four with
reference clock at 644 MHz. Each set of four consists of all combinations of FEC
sublayer on/off.
Figure 69. Reconfiguration Block Details
PCS
Controller
TX EQ Controller
DFE Controller
CTLE Controller
PMA Controller
rcfg_data
rcfg_data
rcfg_data
(1)
rcfg_data
Avalon-MM
Decoder
Avalon-MM Bus
Avalon-MM Bus
Avalon-MM Bus
Avalon-MM reconfig_busy Signal
HSSI
Reconfiguration
Requests
MGMT_CLK
(2)
PCS
Reconfiguration
Interface
PMA
Reconfiguration
Interface
Notes:
1. rcfg = Reconfiguration
2. MGMT_CLK = Management Clock
Related Information
• Arria 10 Enhanced PCS Architecture on page 461
• Arria 10 Standard PCS Architecture on page 479
2.6.3.4. Parameterizing the 10GBASE-KR PHY
This section contains the recommended parameter values for this protocol. Refer to
Using the Arria 10 Transceiver Native PHY IP Core for the full range of parameter
values.
The Arria 10 1G/10GbE and 10GBASE-KR PHY IP core allows you to select either the
Backplane-KR or 1Gb/10Gb Ethernet variant. When you select the Backplane-KR
variant, the Link Training (LT) and Auto Negotiation (AN) tabs appear. The 1Gb/
10Gb Ethernet variant (1G/10GbE) does not implement the LT and AN functions.
Complete the following steps to parameterize the 10GBASE-KR PHY IP core in the
parameter editor:
1. Instantiate the Arria 10 1G/10GbE and 10GBASE-KR PHY from the IP Catalog.
2. Implementing Protocols in Arria 10 Transceivers
UG-01143 | 2018.06.15
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®
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10 Transceiver PHY User Guide
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