KS8995MA Micrel Inc, KS8995MA Datasheet - Page 58

• Manufacturer Part Number: KS8995MA
• Description: IC SWITCH 10/100 5PORT 128PQFP
• Manufacturer: Micrel Inc

Specifications of KS8995MA

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 128-MQFP, 128-PQFP
• Number Of Primary Switch Ports: 5
• Internal Memory Buffer Size: 64
• Operating Supply Voltage (typ): 1.8/2.5/3.3V
• Fiber Support: Yes
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII/SNI
• Power Supply Type: Analog/Digital
• Package Type: PQFP
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Pin Count: 128
• Mounting: Surface Mount
• Jtag Support: No
• Operating Temperature Classification: Commercial
• Data Rate: 100Mbps
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 576-1017 - BOARD EVAL EXPERIMENT KS8995M
• Lead Free Status / RoHS Status: Not Compliant, Lead free / RoHS Compliant

KS8995MA
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:
(1) MIB counter read (read port 1 rx 64 counter)
M9999-051305
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
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 16. 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.
58
Mode
RO
RO
RO
Mode
N/A
RO
Default
0
0
0
Default
N/A
0
Micrel, Inc.
May 2005