KSZ8895MQ-EVAL Datasheet, PDF (97/118 Pages) Micrel Semiconductor – Integrated 5-Port 10/100 Managed Ethernet Switch with MII/RMII Interface

Micrel, Inc.
For port 2, the base is 0x20, same offset definition (0x20-0x3f)
For port 3, the base is 0x40, same offset definition (0x40-0x5f)
For port 4, the base is 0x60, same offset definition (0x60-0x7f)
For port 5, the base is 0x80, same offset definition (0x80-0x9f)
Address Name
Description
Format of Per Port MIB Counters (16 entries)
31
Overflow
30
Count Valid
1, Counter overflow.
0, No Counter overflow.
1, Counter value is valid.
0, Counter value is not valid.
29−0
Counter Values
Counter value.
Table 20. Format of “Per Port” MIB Counter
KSZ8895MQ/RQ/FMQ
Mode
RO
RO
RO
Default
0
0
0
Offset
0x100
0x101
0x102
0x103
0x104
0x105
0x106
0x107
0x108
0x109
Counter Name
Port1 Tx Drop Packets
Port2 Tx Drop Packets
Port3 Tx Drop Packets
Port4 Tx Drop Packets
Port5 Tx Drop Packets
Port1 Rx Drop Packets
Port2 Rx Drop Packets
Port3 Rx Drop Packets
Port4 Rx Drop Packets
Port5 Rx Drop Packets
Description
Tx packets dropped due to lack of resources.
Tx packets dropped due to lack of resources.
Tx packets dropped due to lack of resources.
Tx packets dropped due to lack of resources.
Tx packets dropped due to lack of resources.
Rx packets dropped due to lack of resources.
Rx packets dropped due to lack of resources.
Rx packets dropped due to lack of resources.
Rx packets dropped due to lack of resources.
Rx packets dropped due to lack of resources.
Table 21. All Port Dropped Packet MIB Counters
Address Name
Description
Format of All Port Dropped Packet MIB Counters
30−16
Reserved
Reserved.
15−0
Counter Values
Counter value.
Table 22. Format of “All Dropped Packet” MIB Counter
Mode
N/A
RO
Default
N/A
0
Note:
All port dropped packet MIB counters do not indicate overflow or validity; therefore the application must keep track of overflow and valid
conditions.
January 22, 2013
97
Revision 1.6