Intel® IXF1104 4-Port Gigabit Ethernet Media Access Controller

packets. CRC is removed optionally from receive packets after validation, and is not forwarded to SPI3. Packets with a bad CRC are marked, counted in the statistics block, and may be optionally dropped. A bad packet may be signaled with RERR on the SPI3 interface if it is not dropped.

The IXF1104 MAC operates only in full-duplex mode at 1000 Mbps rates on both SerDes and GMII interface connections. The IXF1104 MAC is capable of operation at 1000 Mbps, full-duplex in RGMII mode, and at full-duplex and half-duplex operation for 10/100 Mbps links.

5.1.1Features for Fiber and Copper Mode

Section 5.1.1.1 through Section 5.1.1.4 cover IXF1104 MAC functions that are independent of the line-side interface.

5.1.1.1Padding of Undersized Frames on Transmit

The padding feature allows Ethernet frames smaller than 64 bytes to be transferred from the SPI3 interface to the TX MAC and padded up to 64 bytes automatically by the MAC. This feature is enabled by setting bit 7 of the “Diverse Config Write ($ Port_Index + 0x18)".

Note: When the user selects the padding function, the MAC core adds an automatically calculated CRC to the end of the transmitted packet.

5.1.1.2Automatic CRC Generation

Automatic CRC Generation is used in conjunction with the padding feature to generate and append a correct CRC to any transmit frame. This feature is enabled by setting bit 6 of the “Diverse Config Write ($ Port_Index + 0x18)".

5.1.1.3Filtering of Receive Packets

This feature allows the IXF1104 MAC to filter receive packets under various conditions and drop the packets through an interaction with the Receive FIFO control.

5.1.1.3.1Filter on Unicast Packet Match

This feature is enabled when bit 0 of the “RX Packet Filter Control ($ Port_Index + 0x19)" = 1. Any frame received in this mode that does not match the Station Address (MAC address) is marked by the IXF1104 MAC to be dropped. The frame is dropped if the appropriate bit in the “RX FIFO Errored Frame Drop Enable ($0x59F)" = 1. Otherwise, the frame is sent out the SPI3 interface and may optionally be signaled with an RERR (see bit 0 in “SPI3 Receive Configuration ($0x701)” on page 215).

When bit 0 of the “RX Packet Filter Control ($ Port_Index + 0x19)" = 0, all unicast frames are sent out the SPI3 interface.

Note: The VLAN filter overrides the unicast filter. Therefore, a VLAN frame cannot be filtered based on the unicast address.

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Datasheet

Document Number: 278757

Revision Number: 009

Revision Date: 27-Oct-2005

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Intel IXF1104 manual Features for Fiber and Copper Mode, Padding of Undersized Frames on Transmit, Automatic CRC Generation

IXF1104 specifications

The Intel IXF1104 is a cutting-edge Network Interface Controller (NIC) designed to meet the needs of high-speed communication in modern networking environments. As the demand for bandwidth-intensive applications continues to grow, Intel's IXF1104 is engineered to deliver exceptional performance, reliability, and scalability, making it an ideal choice for data centers and enterprise networks.

One of the main features of the IXF1104 is its support for high-speed Ethernet connectivity, providing up to 100 Gbps throughput. This capability allows organizations to handle large amounts of data traffic efficiently, accommodating everything from cloud computing to big data analytics. The NIC utilizes advanced packet processing technology which ensures minimal latency, enhancing the overall user experience.

The IXF1104 is built on a robust architecture that integrates Intel's latest processing technologies. It incorporates a multi-core processing engine that allows for parallel processing of network packets, improving the handling of simultaneous network requests. This architecture also supports offloading features, freeing up CPU resources for other critical tasks, which optimizes system performance.

In terms of technologies, the IXF1104 supports a variety of standards including Ethernet and Fiber Channel, making it versatile across different networking environments. Its compatibility with industry-standard networking protocols ensures that it can easily integrate into existing frameworks, facilitating seamless upgrades and expansions.

Another significant characteristic of the IXF1104 is its energy efficiency. With Intel’s focus on sustainability, this NIC is designed to consume less power relative to its performance output, thereby reducing overall operational costs for organizations. It employs dynamic power management features that adjust power usage based on demand, which is especially beneficial in large-scale deployments.

Additionally, security features are woven into the IXF1104 design, protecting sensitive data from potential threats. Hardware-based security functions, including encryption capabilities and secure boot processes, ensure that the NIC can safeguard data integrity against unauthorized access.

Overall, the Intel IXF1104 stands out in the crowded NIC market by offering high-performance capabilities, energy efficiency, and robust security features. Its combination of advanced technologies and characteristics positions it as a strategic asset for modern networks, empowering organizations to achieve their connectivity and performance goals in an increasingly data-driven world.