
Chapter 16: Transceiver Reconfiguration Controller IP Core 16–3
System Overview
November 2012 Altera Corporation Altera Transceiver PHY IP Core
User Guide
System Overview
Figure 16–1 illustrates the Transceiver Reconfiguration Controller’s role. You can
include the embedded controller that initiates reconfiguration in your FPGA or use an
embedded processor on the PCB.
As Figure 16–1 illustrates, an embedded controller programs the Transceiver
Reconfiguration Controller using its Avalon-MM slave interface. The
reconfig_to_xcvr
and
reconfig_from_xcvr
buses include the Avalon-MM
address
,
read
,
write,
readdata
,
writedata
, and signals that connect to features related to
calibration and signal integrity.
The Transceiver Reconfiguration Controller provides two modes to dynamically
reconfigure transceiver settings:
■ Register Based—In this access mode you can directly reconfigure a transceiver
PHY IP core using the Transceiver Reconfiguration Controller’s reconfiguration
management interface. You initiate reconfiguration using a series of Avalon-MM
reads and writes to the appropriate registers of the Transceiver Reconfiguration
Controller. The Transceiver Reconfiguration Controller translates the device
independent commands received on the reconfiguration management interface to
device dependent commands on the transceiver reconfiguration interface. For
more information, refer to Changing Transceiver Settings Using Register-Based
Reconfiguration.
Figure 16–1. Transceiver Reconfiguration Controller
to and from
Embedded
Controller
TX and RX
Serial Data
Avalon-MM master interface
Transceiver
Reconfiguration
Controller
S
M
Avalon-MM slave interface
S
reconfig_to_xcvr[<n>:0]
reconfig_mif_address[31:0]
reconfig_mif_read
Reconfiguration
Management
Interface
reconfig_mif_readdata[15:0]
reconfig_mif_waitrequest
Streaming Data
reconfig_from_xcvr[<n>:0]
Transceiver PHY
Registers to
reconfigure
User Application
Including MAC
Altera V-Series FPGA
.
.
.
.
.
.
S
M
Master
M
S
MIF
ROM
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