Xilinx IP Ethernet AVB Endpoint v2.4 UG492 - Manual (Page 113)

Ethernet AVB Endpoint User Guide www.xilinx.com 113
UG492 September 21, 2010
Using the Xilinx LogiCORE IP Tri-Mode Ethernet MACs
Connections Without Ethernet Statistics
Figure 12-1 illustrates the connection of the Ethernet AVB Endpoint core to the Xilinx Tri-
Mode Ethernet MAC (TEMAC) core when not using the Ethernet Statistics core.
Figure 12-1 provides detail for the connections between the two cores which were shown
in Figure 5-1 .
All connections, as shown, are logic-less connections. Because the AVB standard does not
include support for half-duplex or flow control operation, the relevant half-duplex/flow-
control signals of the TEMAC can be left unused: inputs can be tied to logic 0, outputs can
be left unconnected.
X-Ref Target - Figure 12-1
Figure 12-1: Connection to the Tri-Mode Ethernet MAC Core (without Ethernet Statistics)
tx_clk
tx_clk_en
tx_data[7:0]
rx_clk
rx_clk_en
rx_data[7:0]
rx_data_valid
rx_frame_good
rx_frame_bad
host_opcode[1:0]
host_addr[9:0]
host_wr_data[31:0]
host_req
host_miim_sel
host_miim_rdy
host_rd_data_mac[31:0]
host_rd_data_stats[31:0]
host_stats_lsw_rdy
host_stats_msw_rdy
host_clk
pause_req
tx_clk
tx_clk_en
tx_data[7:0]
tx_collision
tx_retransmit
rx_clk
rx_clk_en
rx_data[7:0]
rx_frame_good
rx_data_valid
rx_frame_bad
host_opcode[1:0]
host_addr[9:0]
host_wr_data[31:0]
host_req
host_miim_sel
host_miim_rdy
host_rd_data[31:0]
host_clk
host_clk
NC
NC
NC
NC
GND
NC
NC
GND
GND
tx_data_valid
tx_underrun
tx_ack
tx_data_valid
tx_underrun
tx_ack
tx_ifg_delay[7:0]
pause_val[15:0]
rx_statistics_valid
tx_statistics_vector[31:0]
rx_statistics_vector[27:0]
tx_statistics_valid
TEMAC Block-level Wrapper
(from TEMAC Example Design)
Ethernet AVB Endpoint
Core Netlist