KSZ8851-16MLLU Micrel, KSZ8851-16MLLU Datasheet - Page 71

• Manufacturer Part Number: KSZ8851-16MLLU
• Description: Ethernet ICs Single-Port Ethernet Controller (Automotive Grade)
• Manufacturer: Micrel

Specifications of KSZ8851-16MLLU

• Rohs: yes
• Product: Ethernet Controllers
• Package / Case: LQFP-48
• Mounting Style: SMD/SMT

0xFA – 0xFF: Reserved
MIB (Management Information Base) Counters
The KSZ8851-16MLL provides 32 MIB counters to monitor the port activity for network management. The MIB counters
are formatted as shown below:
Ethernet port MIB counters are read using indirect memory access. The address offset range is 0x00 to 0x1F.
May 2012
Micrel, Inc.
Bit
1
0
Bit
31-0
Offset
0x0
0x1
0x2
0x3
0x4
0x5
0x6
0x7
0x8
0x9
0xA
0xB
0xC
0xD
0xE
0xF
0x10
0x11
0x12
0x13
Name
Counter
values
Counter Name
RxByte
Reserved
RxUndersizePkt
RxFragments
RxOversize
RxJabbers
RxSymbolError
RxCRCError
RxAlignmentError
RxControl8808Pkts
RxPausePkts
RxBroadcast
RxMulticast
RxUnicast
Rx64Octets
Rx65to127Octets
Rx128to255Octets
Rx256to511Octets
Rx512to1023Octets
Rx1024to1521Octets
Default
0
0
R/W
R/W
RO
RO
RO
Description
0= link partner not 100BT half-duplex capable.
Partner 10BT full-duplex capability
1= link partner 10BT full-duplex capable.
0 = link partner not 10BT full-duplex capable.
Partner 10BT half-duplex capability
1 = link partner 10BT half-duplex capable.
0 = link partner not 10BT half-duplex capable.
Description
Counter value (read clear)
Description
Rx octet count including bad packets
Reserved.
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 bytes)
Rx packets longer than 1536 bytes w/ either CRC errors, alignment errors, or symbol
errors
Rx packets w/ invalid data symbol and legal packet size.
Rx packets within (64,2000) bytes w/ an integral number of bytes and a bad CRC
Rx packets within (64,2000) bytes w/ a non-integral number of bytes and a bad CRC
Number of MAC control frames received by a port with 88-08h in EtherType field
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 error broadcast packets or valid multicast
packets)
Rx good multicast packets (not including MAC control frames, error 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 1521 octets in length
Table 12. Format of MIB Counters
71
0x00000000
Bit is same as:
Bit 6 in P1ANLPR
Bit 5 in P1ANLPR
Default
KSZ8851-16MLL/MLLI
M9999-050112-2.1