IP-10GETHERNET Altera, IP-10GETHERNET Datasheet - Page 55
IP-10GETHERNET
Manufacturer Part Number
IP-10GETHERNET
Description
IP CORE - 10 Gbps Ethernet MAC PCS PMA Reference Design
Manufacturer
Altera
Datasheet
1.IP-10GETHERNET.pdf
(86 pages)
Specifications of IP-10GETHERNET
Software Application
IP CORE, Interface And Protocols, ETHERNET
Supported Families
Quartus II
Core Architecture
FPGA
Core Sub-architecture
Stratix
Rohs Compliant
NA
Lead Free Status / RoHS Status
na
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Congestion and Flow Control Using Pause Frames
Table 3–14. Promiscuous Mode Settings (Part 2 of 2)
© July 2010 Altera Corporation
no_length_check
broad_fltr_ena
frm_length
Configuration Bit
3.4.4.3. Loopback Modes
You can configure the 10-Gbps Ethernet IP core in various loopback modes to
facilitate debugging and testing.
Figure 3–25. Loopback Modes
3.4.4.4.System XGMII Loopback/Local XGMII Loopback
When enabled by the LOCAL_LOOP_ENA bit of the command_config register, the
MAC Rx starts accepting data and control transmitted by MAC Tx at the SDR XGMII
interface. This loopback essentially takes client data through the MAC Tx and returns
it to the client via MAC Rx. Transition to and from this loopback mode takes effect
when the current frame completes. When enabled, idle characters are transmitted to
the remote link partner.
3.4.4.5.Network XGMII Loopback/Remote XGMII Loopback/Line Loopback
When enabled by the LINE_LOOP_ENA bit of the command_config register,
Ethernet traffic received from remote device is looped back to it at the XGMII
interface. To use this mode, complete the following steps:
1. Stop transmitting data.
2. Put the IP core into line loopback mode by completing the following steps:
3. Resume transmission.
The MAC RX receives idles while the line loopback is enabled.
Max Size Ensures all frames are forwarded to the client.
a. Disable the MAC Tx in the configuration register.
b. Turn on line loopback mode.
c. After completing loopback testing, reenable the MAC Tx.
Value
1
0
Receiver does not check the received frame payload length against the length/type
field of the frame.
Broadcast filtering enable. When set to 1, received broadcast frames are filtered out.
Interface
Client
Functions
Functions
Rx MAC
Tx MAC
System XGMII/
line loopback
Figure 3–25
Description
illustrates the loopback modes available.
local_loopback_ena
Network XGMII/
line loopback
rs_rx_data/ctrl
line_loopback_ena
10-Gbps Ethernet IP Functional Description
rs_tx_data/ctrl
64-bit SDR
XGMII
3–29
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