Network Card User Manual

Ethernet Media Access Controller (EMAC) Registers www.ti.com
This may not be an exact count because the receive overruns statistic is independent of the other
statistics, so if an overrun occurs at the same time as one of the other discard reasons, then the above
sum double-counts that frame.
5.50.12 Receive QOS Filtered Frames Register (RXQOSFILTERED)
The total number of frames received on the EMAC that were filtered due to receive quality of service
(QOS) filtering. Such a frame is defined as having all of the following:
• Any data or MAC control frame that matched a unicast, broadcast, or multicast address, or matched
due to promiscuous mode
• The frame destination channel flow control threshold register (RXnFLOWTHRESH) value was
greater than or equal to the channel's corresponding free buffer register (RXnFREEBUFFER) value
• Was of length 64 to RXMAXLEN
• RXQOSEN bit is set in RXMBPENABLE
• Had no CRC error, alignment error, or code error
See Section 2.6.5 for definitions of alignment, code, and CRC errors. Overruns have no effect on this
statistic.
5.50.13 Receive Octet Frames Register (RXOCTETS)
The total number of bytes in all good frames received on the EMAC. A good frame is defined as having
all of the following:
• Any data or MAC control frame that matched a unicast, broadcast, or multicast address, or matched
due to promiscuous mode
• Was of length 64 to RXMAXLEN bytes inclusive
• Had no CRC error, alignment error, or code error
See Section 2.6.5 for definitions of alignment, code, and CRC errors. Overruns have no effect on this
statistic.
5.50.14 Good Transmit Frames Register (TXGOODFRAMES)
The total number of good frames transmitted on the EMAC. A good frame is defined as having all of the
following:
• Any data or MAC control frame that was destined for any unicast, broadcast, or multicast address
• Was any length
• Had no late or excessive collisions, no carrier loss, and no underrun
5.50.15 Broadcast Transmit Frames Register (TXBCASTFRAMES)
The total number of good broadcast frames transmitted on the EMAC. A good broadcast frame is
defined as having all of the following:
• Any data or MAC control frame destined for address FF-FF-FF-FF-FF-FFh only
• Was of any length
• Had no late or excessive collisions, no carrier loss, and no underrun
5.50.16 Multicast Transmit Frames Register (TXMCASTFRAMES)
The total number of good multicast frames transmitted on the EMAC. A good multicast frame is defined
as having all of the following:
• Any data or MAC control frame destined for any multicast address other than FF-FF-FF-FF-FF-FFh
• Was of any length
• Had no late or excessive collisions, no carrier loss, and no underrun
126
Ethernet Media Access Controller (EMAC)/Management Data Input/Output SPRUFI5B–March 2009–Revised December 2010
(MDIO)
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