IXF1104
5.2.3Pre-Pending Function
The IXF1104 implements a
This function is enabled by writing the appropriate data to the “RX FIFO Padding and CRC Strip Enable ($0x5B3)" for each port.
A standard
This feature was added to the IXF1104 to assist in the design of
5.3Gigabit Media Independent Interface (GMII)
The IXF1104 supports a subset of the GMII interface standard as defined in IEEE 802.3 2000 Edition for 1 Gbps operation only. This subset is limited to operation at 1000 Mbps
The GMII Interface operates as a source synchronous interface only and does not accept a TXC clock provided by a PHY device when operating at 10/100 Mbps speeds.
Note: The RGMII interface must be used for applications that require 10/100/1000 Mbps operation.
The IXF1104 does NOT support 10/100 Mbps copper PHY devices that are implemented using the MII Interface.
Note: MII operation is not supported by the IXF1104.
The user can select GMII, RGMII, or Optical Module/SerDes functionality on a
While IEEE 802.3 specifies 3.3 V operation of GMII devices, most PHYs use 2.5 V signaling. The IXF1104 provides a 2.5 V drive and is 3.3
92 | Datasheet |
Document Number: 278757
Revision Number: 007
Revision Date: March 25, 2004