KS8995MA-EVAL Micrel Inc, KS8995MA-EVAL Datasheet - Page 63

• Manufacturer Part Number: KS8995MA-EVAL
• Description: BOARD EVAL EXPERIMENT KS8995MA
• Manufacturer: Micrel Inc

Specifications of KS8995MA-EVAL

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 576-1018

Semptember 2008
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)
Note:
All port dropped packet MIB counters do not indicate overflow or validity; therefore the application must keep track of overflow and valid
conditions.
Examples:
Address
Format of Per Port MIB Counters (16 entries)
31
30
29-0
Offset
0x100
0x101
0x102
0x103
0x104
0x105
0x106
0x107
0x108
0x109
Address
Format of All Port Dropped Packet MIB Counters
30-16
15-0
(1) MIB counter read (read port 1 rx 64 counter)
Write to Register 110 with 0x1c (read MIB counters selected)
Write to Register 111 with 0xe (trigger the read operation)
Then
Read Register 117 (counter value 31-24)
// If bit 31 = 1, there was a counter overflow
// If bit 30 = 0, restart (reread) from this register
Read Register 118 (counter value 23-16)
Read Register 119 (counter value 15-8)
Read Register 120 (counter value 7-0)
Name
Overflow
Count Valid
Counter Values
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
Name
Reserved
Counter Values
Table 14. All Port Dropped Packet MIB Counters
Description
1, Counter overflow.
0, No Counter overflow.
1, Counter value is valid.
0, Counter value is not valid.
Counter value.
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.
Description
Reserved.
Counter value.
63
Mode
Mode
RO
RO
RO
N/A
RO
M9999-091508
Default
Default
N/A
0
0
0
0