KS8995E Micrel Inc, KS8995E Datasheet - Page 25

• Manufacturer Part Number: KS8995E
• Manufacturer: Micrel Inc

Specifications of KS8995E

• Number Of Primary Switch Ports: 5
• 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
• Lead Free Status / RoHS Status: Not Compliant

EEPROM Memory Map
August 2003
KS8995E
Register
0
1
Priority Classification Control - 802.1p tag field
2
2
2
2
2
2
2
2
Control Register 1
3
3
3
3
3
3
3
Control Register 2
4
4
4
4
Bit(s)
7-0
7-0
7
6
5
4
3
2
1
0
7-6
5
4
3
2
1
0
7-6
5
4
3
Description
Signature byte 1. Value = “55”
Signature byte 2. Value = “95”
1 = State “111” is high priority
0 = State “111” is low priority
1 = State “110” is high priority
0 = State “110” is low priority
1 = State “101” is high priority
0 = State “101” is low priority
1 = State “100” is high priority
0 = State “100” is low priority
1 = State “011” is high priority
0 = State “011” is low priority
1 = State “010” is high priority
0 = State “010” is low priority
1 = State “001” is high priority
0 = State “001” is low priority
1 = State “000” is high priority
0 = State “000” is low priority
Priority control scheme (all ports)
00 = Transmit all high priority before any low priority
01= Transmit high and low priority at a 10:1 ratio
10 = Transmit high and low priority at a 5:1 ratio
11 = Transmit high and low priority at a 2:1 ratio
TOS priority classification enable for port 1
1 = Enable, 0 = Disable
802.1p priority classification enable for port 1
1 = Enable, 0 = Disable
Port based priority classification for port 1
1 = Enable, 0 = Disable
Insert VLAN tags for port 1 if non-existent
1 = Enable, 0 = Disable
Strip VLAN tags for port 1 if existent
1 = Enable, 0 = Disable
Enable high and low output priority queues for port 1
1 = Enable, 0 = Disable
Port trunk (link aggregation) control
00 = Disable
01 = Ports 1 and 2 are trunked
10 = Ports 1 and 2 are trunked, ports 3 and 4 are trunked
11 = Ports 1, 2, 3, 4 are trunked
TOS priority classification enable for port 2
1 = Enable, 0 = Disable
802.1p priority classification enable for port 2
1 = Enable, 0 = Disable
Port based priority classification for port 2
1 = Enable, 0 = Disable
25
Default (chip)
Value
0x55
0x95
0
0
0
0
0
0
0
0
00
0
0
0
0
0
0
00
0
0
0
KS8995E
Micrel