Register Descriptions

Table 13-96. RXERRC Register Bit Description

31

 

 

0

 

 

 

 

 

 

 

 

 

 

 

RXEC

 

 

 

 

 

 

 

 

Field

Bit(s)

Initial

Description

 

Value

 

 

 

 

 

 

 

 

 

 

 

RXEC

31:0

0b

RX error count

 

 

 

 

 

 

 

13.7.5Missed Packets Count

MPC (04010h; R)

Counts the number of missed packets. Packets are missed when the receive FIFO has insufficient space to store the incoming packet. This can be caused because of too few buffers allocated, or because there is insufficient bandwidth on the PCI bus. Events setting this counter cause RXO, the Receiver Overrun Interrupt, to be set. This register does not increment if receives are not enabled.

These packets are also counted in the Total Packets Received register as well as in Total Octets Received.

Table 13-97. MPC Register Bit Description

31

 

 

0

 

 

 

MPC

 

 

 

 

Field

Bit(s)

Initial

Description

Value

 

 

 

 

 

 

 

MPC

31:0

0b

Missed Packets Count

 

 

 

 

13.7.6Single Collision Count

SCC (04014h; R)

This register counts the number of times that a successfully transmitted packet encountered a single collision. This register only increments if transmits are enabled and the Ethernet controller is in half-duplex mode.

Software Developer’s Manual

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Page 353
Image 353
Intel Intel Gigabit Ethernet Controllers, PCI Missed Packets Count, Single Collision Count, MPC 04010h R, SCC 04014h R