KS8997 Micrel Inc, KS8997 Datasheet - Page 4

• Manufacturer Part Number: KS8997
• Description: IC SWITCH 10/100 8PORT 128PQFP
• Manufacturer: Micrel Inc

Specifications of KS8997

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 128-MQFP, 128-PQFP
• Fiber Support: No
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII
• 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
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

KS8997
Table of Contents
KS8997
System Level Applications .............................................................................................................................................................. 6
Pin Description .............................................................................................................................................................................. 7
I/O Grouping
I/O Descriptions ............................................................................................................................................................................ 11
Pin Configuration ........................................................................................................................................................................... 14
Functional Overview: Physical Layer Transceiver ..................................................................................................................... 15
Functional Overview: Switch Core .............................................................................................................................................. 17
Prorammable Features .................................................................................................................................................................. 18
VLAN Operation ............................................................................................................................................................................ 20
Station MAC Address .................................................................................................................................................................... 20
EEPROM Operation ........................................................................................................................................................................ 21
100BaseTX Transmit ............................................................................................................................................................... 15
100BaseTX Receive ................................................................................................................................................................ 15
PLL Clock Synthesizer ............................................................................................................................................................ 15
Scrambler/De-scrambler (100BaseTX only) ............................................................................................................................ 15
10BaseT Transmit ................................................................................................................................................................... 15
10BaseT Receive .................................................................................................................................................................... 15
Power Management ................................................................................................................................................................ 15
MDI/MDI-X Auto Crossover ..................................................................................................................................................... 15
Auto-Negotiation ...................................................................................................................................................................... 16
Address Look-Up ..................................................................................................................................................................... 17
Learning
Migration
Aging
Forwarding ............................................................................................................................................................................ 17
Switching Engine ..................................................................................................................................................................... 17
MAC Operation ........................................................................................................................................................................ 17
Priority Schemes ..................................................................................................................................................................... 18
Per Port Method ...................................................................................................................................................................... 18
802.1p Method ......................................................................................................................................................................... 18
IPv4 DSCP Method ................................................................................................................................................................. 19
Other Priority Considerations .................................................................................................................................................. 19
EEPROM Memory Map ........................................................................................................................................................... 21
Power Save Mode ........................................................................................................................................................... 15
Inter Packet Gap (IPG) ................................................................................................................................................... 17
Backoff Algorithm ............................................................................................................................................................ 17
Late Collision .................................................................................................................................................................. 18
Illegal Frames ................................................................................................................................................................. 18
Flow Control .................................................................................................................................................................... 18
Half-Duplex Back Pressure ............................................................................................................................................. 18
Broadcast Storm Protection ............................................................................................................................................ 18
General Conrol Register ................................................................................................................................................. 21
Priority Classification Control: 802.1p Tag Field ............................................................................................................ 21
Port 1 Control Register ................................................................................................................................................... 21
Port 2 Control Register ................................................................................................................................................... 22
Port 3 Control Register ................................................................................................................................................... 22
Port 4 Control Register ................................................................................................................................................... 23
Port 5 Control Register ................................................................................................................................................... 23
Port 6 Control Register ................................................................................................................................................... 23
Port 7 Control Register ................................................................................................................................................... 24
............................................................................................................................................................................ 10
............................................................................................................................................................................ 17
............................................................................................................................................................................ 17
............................................................................................................................................................................ 17
4
August 2003
Micrel