Xilinx UG773 LogiCORE IP 10-Gigabit Ethernet MAC v11.1, User ...

Chapter 3: Core Architecture
Configuration and Status Signals
MDIO Interface
Statistic Vectors
If the Management Interface is omitted at core customization time, configuration and
status vectors are exposed by the core. This allows you to configure the core by statically or
dynamically driving the constituent bits of the port. Table 3-6 describes the configuration
and Status signals. See Chapter 7, Interfacing to the Core: Management Interface for details
on this signal, including a breakdown of the configuration and status vector bits.
Table 3-6: Configuration and Status Signals
Name Direction Description
tx_configuration_vector[79:0] Input Configuration signals for the Transmitter
rx_configuration_vector[79:0] Input Configuration signals for the Receiver
status_vector[1:0] Output Status signals for the core
The MDIO Interface signals are shown in Table 3-7. See Chapter 7, Interfacing to the Core:
Management Interface for details on the use of this interface.
Table 3-7: MDIO Interface Port Descriptions
Name Direction Description
mdc Output MDIO clock
mdio_in Input MDIO input
mdio_out Output MDIO output
mdio_tri Output MDIO 3-state. ‘1’ disconnects the output driver from the
MDIO bus.
In addition to the statistic counters described in Management Interface in Chapter 3, there
are two statistics vector outputs on the core netlist that are used to signal the core state.
These vectors are actually used as the inputs of the counter logic internal to the core; so if
you omit the statistic counters at the CORE Generator software customization stage, a
relevant subset can be implemented in user logic. The signals are shown in Table 3-8. The
contents of the vectors themselves are described in Chapter 7, Interfacing to the Core:
Management Interface.
Table 3-8: Statistic Vector Signals
Name Direction Description
tx_statistics_vector[24:0] Output Aggregated statistics flags for
transmitted frame.
tx_statistics_valid Output Valid strobe for tx_statistics_vector.
rx_statistics_vector[28:0] Output Aggregated statistics flags for
received frames.
rx_statistics_valid Output Valid strobe for rx_statistics_vector.
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UG773 March 1, 2011