KSZ8864RMNI MICREL [Micrel Semiconductor], KSZ8864RMNI Datasheet - Page 92

• Manufacturer Part Number: KSZ8864RMNI
• Description: Integrated 4-Port 10/100 Managed Switch with Two MACs MII or RMII Interfaces
• Manufacturer: MICREL [Micrel Semiconductor]

September 2011
MIB (Management Information Base) Counters
The MIB counters are provided on per port basis. These counters are read using indirect memory access as below:
For Port 1
0x20
0x21
0x22
0x23
0x24
0x25
0x26
0x27
0x28
0x29
0x2A
0x2B
0x2C
0x2D
0x2E
0x2F
0x30
0x31
0x32
0x33
0x34
0x35
0x36
0x37
0x38
0x39
0x3A
0x3B
0x3C
0x3D
0x3E
0x3F
Offset
Counter Name
RxLoPriorityByte
RxHiPriorityByte
RxUndersizePkt
RxFragments
RxOversize
RxJabbers
RxSymbolError
RxCRCerror
RxAlignmentError
RxControl8808Pkts
RxPausePkts
RxBroadcast
RxMulticast
RxUnicast
Rx64Octets
Rx65to127Octets
Rx128to255Octets
Rx256to511Octets
Rx512to1023Octets
Rx1024to1522Octets
TxLoPriorityByte
TxHiPriorityByte
TxLateCollision
TxPausePkts
TxBroadcastPkts
TxMulticastPkts
TxUnicastPkts
TxDeferred
TxTotalCollision
TxExcessiveCollision
TxSingleCollision
TxMultipleCollision
Table 17. Port-1 MIB Counter Indirect Memory Offsets
Description
Rx lo-priority (default) octet count including bad packets.
Rx hi-priority octet count including bad packets.
Rx undersize packets w/good CRC.
Rx fragment packets w/bad CRC, symbol errors or alignment errors.
Rx oversize packets w/good CRC (max: 1536 or 1522 bytes).
Rx packets longer than 1522B w/either CRC errors, alignment errors, or symbol errors (depends
on max packet size setting) or Rx packets longer than 1916B only.
Rx packets w/ invalid data symbol and legal preamble, packet size.
Rx packets within (64,1522) bytes w/an integral number of bytes and a bad CRC (upper limit
depends up on max packet size setting).
Rx packets within (64,1522) bytes w/a non-integral number of bytes and a bad CRC (upper limit
depends on max packet size setting).
The number of MAC control frames received by a port with 88-08h in EtherType field.
The number of PAUSE frames received by a port. PAUSE frame is qualified with EtherType (88-
08h), DA, control opcode (00-01), data length (64B min), and a valid CRC.
Rx good broadcast packets (not including errored broadcast packets or valid multicast packets).
Rx good multicast packets (not including MAC control frames, errored multicast packets or valid
broadcast packets).
Rx good unicast packets.
Total Rx packets (bad packets included) that were 64 octets in length.
Total Rx packets (bad packets included) that are between 65 and 127 octets in length.
Total Rx packets (bad packets included) that are between 128 and 255 octets in length.
Total Rx packets (bad packets included) that are between 256 and 511 octets in length.
Total Rx packets (bad packets included) that are between 512 and 1023 octets in length.
Total Rx packets (bad packets included) that are between 1024 and 1522 octets in length (upper
limit depends on max packet size setting).
Tx lo-priority good octet count, including PAUSE packets.
Tx hi-priority good octet count, including PAUSE packets.
The number of times a collision is detected later than 512 bit-times into the Tx of a packet.
The number of PAUSE frames transmitted by a port.
Tx good broadcast packets (not including errored broadcast or valid multicast packets).
Tx good multicast packets (not including errored multicast packets or valid broadcast packets).
Tx good unicast packets.
Tx packets by a port for which the 1st Tx attempt is delayed due to the busy medium.
Tx total collision, half-duplex only.
A count of frames for which Tx fails due to excessive collisions.
Successfully Tx frames on a port for which Tx is inhibited by exactly one collision.
Successfully Tx frames on a port for which Tx is inhibited by more than one collision.
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