HFIXF1110CC Intel, HFIXF1110CC Datasheet - Page 54

• Manufacturer Part Number: HFIXF1110CC
• Manufacturer: Intel

Specifications of HFIXF1110CC

• Number Of Transceivers: 1
• Screening Level: Commercial
• Mounting: Surface Mount
• Operating Temperature (min): 0C
• Operating Temperature (max): 70C
• Lead Free Status / RoHS Status: Not Compliant

Intel
5.1.8
5.1.8.1
07-Oct-2005
54
®
IXF1110 10-Port 1000 Mbps Ethernet Media Access Controller
TX Statistics:
The IXF1110 MAC checkss the CRC for all legal length jumbo frames (frames between 1519 and
the Max Frame Size). On transmission, the MAC can be programmed to append the CRC to the
frame or check the CRC and increment the appropriate counter. On reception, the MAC transmits
these frames across the SPI4-2 interface (jumbo frames with a bad CRC cannot be dropped and are
sent across the SPI4-2 interface). If the receive frame has a bad CRC, the appropriate counter is
incremented and the EOP Abort code is set in the SPI4-2 control word.
Jumbo frames also impact flow control. The maximum frame size needs to be taken into account
when determining the FIFO watermarks. The current transmission must be completed before a
Pause frame can be transmitted (needed when the receiver FIFO high watermark has been
exceeded). If the current transmission is a jumbo frame, the delay may be significant and increase
data loss due to insufficient available FIFO space.
RMON Statistics Support
RMON Statistics
The IXF1110 MAC supplies RMON statistics via the CPU interface. These statistics are available
in the form of counter values that can be accessed at specific addresses in the IXF1110 MAC
memory map. Once read, these counters automatically reset and begin counting from zero. A
separate set of RMON statistics is available for each MAC device in the IXF1110 MAC.
Implementation of the RMON Statistics block is similar to the functionality provided by existing
Intel switch and router products. This implementation allows the IXF1110 MAC to provide all of
the RMON Statistics group as defined by RFC2819.
The IXF1110 MAC supportss the RMON RFC2819 Group 1 statistics counters.
differences and additional statistics registers supported by the IXF1110 MAC that are outside the
scope of the RMON RFC2819 document.
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RXFCSErrors (Addr: Port_Index + 0x2C)
RXDataError (Addr: Port_Index + 0x02E)
RXAlignErrors (Addr: Port_Index + 0x2F)
RXLongErrors (Addr: Port_Index + 0x30)
RXJabberErrors (Addr: Port_Index + 0x31)
RXVeryLongErrors (Addr: Port_Index + 0x34)
TXOctetsTotalOK (Addr: Port_Index + 0x40)
TxPkts1519toMaxOctets (Addr: Port_Index + 0x4B)
TxExcessiveLengthDrop (Addr: Port_Index + 0x53)
TXCRCError (Addr: Port_Index + 0x56)
Intel
®
IXF1110 10-Port 1000 Mbps Ethernet Media Access Controller
Order Number: 250210, Revision: 009
Table 16
notes the
Datasheet